Fillable Annual Drinking Water Quality Report-2019Annual Drinking Water Quality (Seminole County Government)

Fill Online, Printable, Fillable, Blank Annual Drinking Water Quality Report-2019Annual Drinking Water Quality (Seminole County Government) Form

Use Fill to complete blank online SEMINOLE COUNTY GOVERNMENT (FL) pdf forms for free. Once completed you can sign your fillable form or send for signing. All forms are printable and downloadable.

Annual Drinking Water Quality Report-2019Annual Drinking Water Quality (Seminole County Government)

On average this form takes 10 minutes to complete

The Annual Drinking Water Quality Report-2019Annual Drinking Water Quality (Seminole County Government) form is 55 pages long and contains:

  • 0 signatures
  • 0 check-boxes
  • 40 other fields

Country of origin: US
File type: PDF

U.S.A. forms for Seminole County Government

BROWSE SEMINOLE COUNTY GOVERNMENT (FL) FORMS

Related forms
Fill has a huge library of thousands of forms all set up to be filled in easily and signed.
Fill in your chosen form
Sign the form using our drawing tool
Send to someone else to fill in and sign.
find another form
 
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
1
\_
•
SEMINOLE
CoUNTY
FLORIDA'S
NATURAL
CHOICE
Annual Drinking Water Annual Drinking Water
Quality Report 2019Quality Report 2019
Annual Drinking Water Annual Drinking Water
Quality Report 2019Quality Report 2019
Seminole CountySeminole County
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
2
•
SEMINOLE
CDUNTY
FL
OR
I
DA'S
NA
TU
RA
L CHOI
CE
Annual Drinking Water
Quality Report-2019
Annual Drinking Water
Quality Report-2019
Seminole County Environmental Services is pleased to present you with the 2019 Annual Drinking Water
Quality Report. This report is designed to inform you about the quality water and services that we deliver
to you every day. These results did not happen without the commitment and dedication of our team of
licensed water operators whose goal is and always has been to provide to you a safe and dependable
supply of drinking water. We want you to understand the efforts we make to continually improve the
water treatment process and protect our water resources. We are proud to share this report, which is
based on water quality testing through December 2019; you will find that we supply water that meets or
exceeds all federal and state water quality regulations.
In an effort to reduce paper consumption and minimize the impact on our environment, we offer Our
Water Quality Report electronically to all our customers. This report is divided into a service area map
and 11 individual drinking water service area water quality reports. To determine your drinking water
service area, please utilize the report’s service area map and find the vicinity of your address; use the
color-coded legend to determine your service area and go directly to that part of the report. Or, feel free
to peruse the water quality data for all drinking water service areas served by Seminole County. If you
would like a printed copy of this report mailed to your address, please contact Environmental Services
Customer Service office at 407-665-2110, to request your copy.
Sincerely,
Terrance McCue, Ph.D., P.E.
Director
Seminole County Environmental Services
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
I
/
I
1111
1111
1111
1111
/
-
1111
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
1111
1111
Map of Water Service
Areas
SR 417
415
SR
SR 46
Lake Mary Blvd
I-4
US Hwy 17-92
SR 417
SR 419
Wekiva
CR 426
Springs Rd
SR 434
SR 434
Snow Hill Rd
Tuskawilla Rd
SR 436
CR 419
SR 434
Red Bug Lake Rd
Lockwood
Howell
Blvd
Branch Rd
Map of Water Service
CR 427
Areas
Lake
Monroe
SR 46
Celery Ave
CR 46A
Lake
Harney
Legend
Major Roads
Seminole County Utilities - Water Service Areas
APPLE VALLEY
LAKE BRANTLEY SOUTHEAST
BLACK HAMMOCK
MEREDITH MANOR
SOUTHWEST
CHASE GROVES
NORTHEAST
SUNSHADOWS
DRUID HILLS
NORTHWEST
3
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
4
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
Back
to
Service
Area
Map
Drinking Water Quality Report-Apple Valley
Service Area 2019
Drinking Water Quality Report-Apple Valley
Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resources.
We are commied to ensuring the quality of your water. The drinking water for the Apple Valley
Service Area (PWS #3590039) is obtained from ground water wells, aerated to remove hydrogen
sulde, chlorinated for disinfecon, uoridated for dental purposes and orthophosphate is added for
corrosion control. If you have any quesons about this report or concerning your water ulity, please
contact Seminole County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated
otherwise, this report is based on the results of our monitoring for the period of January 1 to December 31, 2019. Data obtained
before January 1, 2019, and presented in this report are from the most recent tesng done in accordance with the laws, rules and
regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on the City of Altamonte Springs, from
whom we purchase your drinking water. The assessment was conducted to provide informaon about any potenal sources of
contaminaon in the vicinity of their wells. There are ve (5) potenal sources of contaminaon idened for this system with low
suscepbility levels. The assessment results are available on the FDEP Source Water Assessment and Protecon Program website at
www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, sepc systems, agri-
cultural livestock operaons, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and resi-
denal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial pro-
cesses and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
5
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
6
6,
SEMINOLE
COUNTY
FIOKll,h
'\\II
IK\I
CIIOIC
I
- -
Apple Valley Service AreaApple Valley Service Area
W A T E R Q U A L I T Y R E S U L T S
Apple Valley Consecutive Water System - PWS ID# 3590039
Inorganic Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling points
or the highest detected level at any sampling point, depending on the sampling frequency.
Contaminant and Unit of
Measurement
Date of
Sampling
(mo/yr)
MCL
Violation
Y/N
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Barium (ppm)
City of Altamonte Springs
03/17 N 0.009 0.0062 - 0.009 2 2
Discharge of drilling wastes; discharge from metal refineries;
erosion of natural deposits
Fluoride (ppm)
City of Altamonte Springs
04/17 N 0.66 0.58 - 0.66 4 4
Erosion of natural deposits; discharge from fertilizer and
aluminum factories. Water additive which promotes strong teeth
when at optimum level of 0.7 ppm
Sodium (ppm)
03/17 N 15.0 10.3 - 15.0 N/A 160 Salt water intrusion, leaching from soil
City of Altamonte Springs
Stage 2 Disinfectants/Disinfection By-Products
* For Bromate and Chlorine, the level detected is the highest running annual average (RAA), computed quarerly, of monthly averages of all samples collected. The Range of Results is the range of results of all the individual
samples collected during the past year.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all
monitoring locations.
*** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individaul samples results (lowest to highest for all
monitoring locations.
Date of
MCL
Contaminant and Unit of MCLG or
Sampling Violation
Level Detected Range of Results MCL or MRDL Likely Source of Contamination
Measurement MRDLG
(mo/yr)
Y/N
Chlorine (ppm)
Seminole County
City of Altamonte Springs
01/19 - 12/19
2019
N
N
0.86 *
1.1
0.37 - 1.37
0.2 - 2.2
MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
Haloacetic Acids (five)
(HAA5) (ppb)
Seminole County
City of Altamonte Springs
07/19
2019
N
N
21.38 **
16.32 - 21.38
13.2 - 36.7
NA MCL = 60 By-product of drinking water disinfection
Total Trihalomethanes
(TTHM) (ppb)
NA MCL = 80 By-product of drinking water disinfection
Seminole County
07/18
N
38.46 - 47.15
City of Altamonte Springs
2018
N
28.3 - 57.1
Lead and Copper (Tap Water)
Date of
Number of sampling
Contaminant and Unit of AL Violation 90th Percentile
Sampling sites exceeding the
MCLG AL Likely Source of Contamination
Measurement Y/N Result
(mo/yr)
AL
Copper (tap water) (ppm)
Seminole County
08/18 N 0.26 0 1.3 1.3
Corrosion of household plumbing systems; erosion of natural
deposits; leaching from wood preservatives
The Fourth Unregulated Contaminant Monitoring Rule (UCMR4)
Purpose : To collect occurrence data for contaminants suspected to be present in drinking water but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Northeast Regional Water
Treatment Plant has been monitoring these unregulated contaminants as part of a study to help the US Environmental Protection Agency determine whether or not these contaminants need to be regulated. The UCMR
program is the primary source of drinking water contaminant occurence data used by EPA in regulatory determinations. If you would like more information on the EPA's Unregulated Contaminants Monitoring Rule, please
call the Safe Drinking Water Hotline at (800) 426-4791
Date of
Contaminant and Unit of
Maximum
Sampling
Average Level Range of Results
Likely Source of Contamination
Measurement
Level
(mo/yr)
Haloacetic acids (HAA5)
(ppb)
3/19-8/19 33.3 21.6 11.9 - 33.3
By-product of drinking water disinfection
Haloacetic acids (HAA6Br)
(ppb)
3/19-8/19 11.6 7.7 6.27 -11.6
By-product of drinking water disinfection
Haloacetic acids (HAA9)
(ppb)
3/19-8/19 44.37 29.3 17.67 -44.37
By-product of drinking water disinfection
Total Organic Carbon (ppb) 3/19-8/19 1750 1121.8 718 - 1750
Naturally present in the environment
Bromide (ppb) 3/19-8/19 43.1 34.8 30.1 - 43.1
Naturally present in the environment
Manganese (ppb) 3/19-8/19 45.7 12.7 1.2 - 45.7
Naturally occurring element; used in steel production, fertilizer, batteries and fireworks
Geranium(ppb) 3/19-8/19 1.5 0.4 ND - 1.5
Naturally occurring element; byproduct of zonc ore processing, used in infrared optics, fiber
optics systems, electronic & solar applications
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
7
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Back
to
Service
Area
Map
Drinking Water Quality Report-Black
Hammock Service Area 2019
Drinking Water Quality Report-Black
Hammock Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to inform
you about the quality water and services we deliver to you every day. Our constant goal is to provide you
with a safe and dependable supply of drinking water. We want you to understand the eorts we make to
connually improve the water treatment process and protect our water resources. We are commied to
ensuring the quality of your water. The drinking water for the Black Hammock Consecuve Service Area
(PWS #3594186) is obtained from ground water wells, Carbon Dioxide is used to adjust the pH, sent
thru aeraon towers to remove hydrogen sulde, chloraminated for disinfecon, and then uoridated
for dental health purposes. If you have any quesons about this report or concerning your water ulity,
please contact Seminole County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants
in your drinking water according to Federal and State laws, rules and regulaons. Except
where indicated otherwise, this report is based on the results of our monitoring for the period of January 1 to December
31, 2019. Data obtained before January 1, 2019, and presented in this report are from the most recent tesng done in
accordance with the laws, rules and regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on City of Oviedo, from whom we
purchase your drinking water. The assessment was conducted to provide informaon about any potenal sources of contamina-
on in the vicinity of their wells. There are six (6) potenal sources of contaminaon idened for this system with low to moderate
suscepbility levels. The assessment results are available on the FDEP Source Water Assessment and Protecon Program website at
www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, sepc systems, agri-
cultural livestock operaons, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
8
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
G
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
9
6,
SEMINOLE
COUNTY
I
le
lKlll\S
NIIIIK,\I
(
IICllC
I
--
-
Black Hammock Service AreaBlack Hammock Service Area
W A T E R Q U A L I T Y R E S U L T S
Black Hammock Consecutive Water System (PWS ID# 3594186)
Inorganic Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling points or
the highest detected level at any sampling point, depending on the sampling frequency.
Date of
Contaminant and Unit of MCL Violation
Sampling
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement Y/N
(mo/yr)
Arsenic (ppb)
City of Oviedo
04/17 N 0.3 0.3 0 10
Erosion of natural deposits; runoff from orchards; runoff from
glass and electronics production wastes
Barium (ppm)
City of Oviedo
04/17 N 0.017 0.017 2 2
Discharge of drilling wastes; discharge from metal refineries;
erosion of natural deposits
Fluoride (ppm)
City of Oviedo
04/17 N 0.4 0.4 4 4
Erosion of natural deposits; discharge from fertilizer and
aluminum factories. Water additive which promotes strong
teeth when at optimum level of 0.7 ppm
Lead (point of entry) (ppb)
City of Oviedo
04/17 N 0.5 0.5 0 15
Residue from man-made pollution such as auto emissions and
paint; lead pipe, casing and solder
Sodium (ppm)
City of Oviedo
04/17 N 39.0 39.0 NA 160 Salt water intrusion, leaching from soil
Nickel (ppb)
City of Oviedo
04/17 N 0.1 0.1 NA 100
Pollution from mining and refining operations. Natural
occurrence in soil.
Nitrate (as Nitrogen ppm)
Runoff from fertilizer use; leaching from septic tanks, sewage;
05/19 N 0.47 0.47 10 10
City of Oviedo
erosion of natural deposits
Stage 1 Disinfectant/Disinfection By-Product
For bromate, chloramines, or chlorine, the level detected is the highest running annual average (RAA), computed quarterly, of monthly averages of all samples collected. The range of results is the range of results of all individual samples collected
during the past year.
Date of
Contaminant and Unit of MCL Violation MCLG or
Sampling
Level Detected Range of Results MCL or MRDL Likely Source of Contamination
Measurement Y/N MRDLG
(mo/yr)
Chloramines (ppm)
Seminole County
01/19 - 12/19
N
1.47 (Average)
0.99 - 2.28
MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
City of Oviedo 01/19- 12/19
N
2.30 ( Average)
1.00 - 3.40
Stage 2 Disinfectants/Disinfection By-Products
* For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all monitoring locations.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individaul samples results (lowest to highest for all monitoring locations.
Date of
Contaminant and Unit of MCL Violation MCLG or
Sampling
Level Detected Range of Results MCL or MRDL Likely Source of Contamination
Measurement Y/N MRDLG
(mo/yr)
Haloacetic Acids (five)
(HAA5) (ppb)
Seminole County
City of Oviedo
08/08/19
05/13/19
N
N
12.00*
10.99*
12.00*
10.95 - 10.99*
NA MCL = 60 By-product of drinking water disinfection
Total Trihalomethanes
(TTHM) (ppb)
NA MCL = 80 By-product of drinking water disinfection
Seminole County
08/08/19 N
24.54*
24.54*
City of Oviedo
05/13/19
N
21.34*
20.03 - 21.34*
Lead and Copper (Tap Water)
Date of
Number of sampling
Contaminant and Unit of AL Violation 90th Percentile
Sampling sites exceeding the MCLG AL Likely Source of Contamination
Measurement Y/N Result
(mo/yr)
AL
Copper (tap water) (ppm)
Seminole County
09/18 N 0.075 0 1.3 1.3
Corrosion of household plumbing systems; erosion of natural
deposits; leaching from wood preservatives
The Fourth Unregulated Contaminant Monitoring Rule (UCMR4)
Purpose : To collect occurrence data for contaminants suspected to be present in drinking water but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Northeast Regional Water
Treatment Plant has been monitoring these unregulated contaminants as part of a study to help the US Environmental Protection Agency determine whether or not these contaminants need to be regulated. The UCMR
program is the primary source of drinking water contaminant occurence data used by EPA in regulatory determinations. If you would like more information on the EPA's Unregulated Contaminants Monitoring Rule, please
call the Safe Drinking Water Hotline at (800) 426-4791
Date of
Contaminant and Unit of
Sampling Maximum Level Average Level Range of Results
Likely Source of Contamination
Measurement
(mo/yr)
Haloacetic acid (HAA5) (ppb) 04/18, 10/18 10.2 6.6 4.7-10.2
By-product of drinking water disinfection
Haloacetic acid (HAA6Br)
(ppb)
04/18, 10/18 7.66 5.77 4.12-7.66
By-product of drinking water disinfection
Total Organic Carbon (ppm) 04/18, 10/18 1.4 1.3 1.2 -1.4
Naturally present in the environment
Bromide (ppb) 04/18, 10/18 197 188 179 -197
Naturally present in the environment
Manganese (ppb) 04/18, 10/18 3 2.95 2.9 -3.0
Natural occurrence from soil leaching
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
10
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
Back
to
Service
Area
Map
Drinking Water Quality Report-Chase
Groves Consecutive Service Area 2019
Drinking Water Quality Report-Chase
Groves Consecutive Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resources.
We are commied to ensuring the quality of your water. The drinking water for the Chase Groves
Consecuve Service Area (PWS #3594214) is obtained from ground water wells and is chlorinated for
disinfecon purposes and then uoridated for dental health purposes. Polyphosphate is added for
corrosion control. If you have any quesons about this report or concerning your water ulity, please
contact Seminole County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated oth-
erwise, this report is based on the results of our monitoring for the period of January 1 to December
31, 2019. Data obtained before January 1, 2019, and presented in this report are from the most recent tesng done in accordance
with the laws, rules and regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on City of Sanford, from whom we
purchase your drinking water. The assessment was conducted to provide informaon about any potenal sources of contaminaon
in the vicinity of their wells. There are ten (10) potenal sources of contaminaon idened for this system with low to moderate
suscepbility levels. The assessment results are available on the FDEP Source Water Assessment and Protecon Program website at
www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, sepc systems, agri-
cultural livestock operaons, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
11
G
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or expect-
ed risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
12
6,
SEMINOLE
COUNTY
FIOKll,h
'\\II
IK\I
CIIOIC
I
- -
Chase Groves Service AreaChase Groves Service Area
W A T E R Q U A L I T Y R E S U L T S
Chase Groves Consecutive Water System - PWS ID# 3594214
Radioactive Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling points or the
highest detected level at any sampling point, depending on the sampling frequency.
Contaminant and Unit of Date of Sampling MCL Violation
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement (mo/yr) Y/N
Radium 226 + 228 or
01/16/19 -
combined radium (pCi/L)
N 2.02 ND - 2.02 0 5 Erosion of natural deposits
1/19/19
City of Sanford
Alpha emitters (pCi/L)
01/16/19 -
N 3.27 ND - 3.27 0 15 Erosion of natural deposits
City of Sanford
1/19/19
Inorganic Contaminants
Contaminant and Unit of Date of Sampling MCL Violation
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement (mo/yr) Y/N
Arsenic (ppb)
Erosion of natural deposits; runoff from orchards; runoff from
09/28/2017 N 1.4 ND - 1.4 0 10
City of Sanford
glass and electronics production wastes
Barium (ppm)
Discharge of drilling wastes; discharge from metal refineries;
09/28/2017 N 0.023 0.0097 - 0.023 2 2
City of Sanford
erosion of natural deposits
Erosion of natural deposits; discharge from fertilizer and
Fluoride (ppm)
09/28/2017 N 0.6 0.57 - 0.6 4 4 aluminum factories. Water additive which promotes strong
City of Sanford
teeth when at optimum level of 0.7 ppm
Nitrate (as Nitrogen) (ppm)
Runoff from fertilizer use; leaching from septic tanks, sewage;
05/22/2019 N 0.32 0.06 - 0.32 10 10
City of Sanford
erosion of natural deposits
Sodium (ppm)
09/28/2017 N 32.7 27.9 - 32.7 N/A 160 Salt water intrusion, leaching from soil
City of Sanford
Stage 1 Disinfectants/Disinfection By-Products
* For bromate, chloramines, or chlorine, the level detected is the highest running annual average (RAA), computed quarterly, of monthly averages of all samples collected. The range of results is the range of results of all individual samples collected during
the past year.
Contaminant and Unit of Date of Sampling MCL Violation
MCLG or
Level Detected Range of Results
MCL or MRDL Likely Source of Contamination
Measurement (mo/yr) Y/N
MRDLG
Bromate (ppb)
01/19-12/19 N 2.6* ND - 13.0 MCLG = 0 MCL = 10 By-product of drinking water disinfection
City of Sanford
Chlorine (ppm)
N
1.29*
0.75 - 1.77
MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
Seminole County
01/19 - 12/19
N
1.3* 0.2 - 2.40
City of Sanford
01/19 - 12/19
Stage 2 Disinfectants/Disinfection By-Products
* For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all monitoring locations.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individaul samples results (lowest to highest) for all monitoring locations.
Contaminant and Unit of Date of Sampling MCL Violation
MCLG or
Level Detected Range of Results
MCL or MRDL Likely Source of Contamination
Measurement (mo/yr) Y/N
MRDLG
Haloacetic Acids (five)
(HAA5) (ppb)
NA MCL = 60 By-product of drinking water disinfection
N 21.215 * 16.20 - 28.15**
01/19 - 12/19
Seminole County
N
20.74 **
6.83 - 21.49
Total Trihalomethanes
(TTHM) (ppb)
02/19 - 11/19
City of Sanford
NA MCL = 80 By-product of drinking water disinfection
N 76.585 **
100.69 - 52.23
01/19 - 12/19
Seminole County
58.260 **
N
ND - 75.78
One (1) sample during 2019 had a TTHM result of 100.69, which exceeds the MCL of 80 ppb. However, the system did not incur an MCL violation, because all annual average results at all sites were at or below the MCL. Some people who drink water
containing trihalomethanes in excess of MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer.
02/19 - 11/19
City of Sanford
4th Quarter
1st Quarter
2nd Quarter
3rd Quarter
TTHM Monitoring Results (ppb)
2019
CG-5 2999 Greenwood Springs Loop
2019
2019
2019
Quarterly Results
55.38 79.42 70.85
100.69
CG-5 2999 Greenwood Springs Loop
LRAA
64.655 66.555 70.08
76.585
Lead and Copper (Tap Water )
Number of sampling
Contaminant and Unit of Date of Sampling AL Violation 90th Percentile
sites exceeding the MCLG AL Likely Source of Contamination
Measurement (mo/yr) Y/N Result
AL
Copper (tap water) (ppm)
Corrosion of household plumbing systems; erosion of natural
07/2017 N 0.029 0 1.3 1.3
Seminole County
deposits; leaching from wood preservatives
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
13
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Back
to
Service
Area
Map
Drinking Water Quality Report-Druid Hills
Consecutive Service Area 2019
Drinking Water Quality Report-Druid Hills
Consecutive Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resourc-
es. We are commied to ensuring the quality of your water. The drinking water for the Druid Hills
Service Area (PWS #3590111) is obtained from ground water wells and is chlorinated for disinfecon
purposes. If you have any quesons about this report or concerning your water ulity, please contact
Seminole County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated
otherwise, this report is based on the results of our monitoring for the period of January 1 to Decem-
ber 31, 2019. Data obtained before January 1, 2019, and presented in this report are from the most
recent tesng done in accordance with the laws, rules and regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on our system. The assessment was
conducted to provide informaon about any potenal sources of contaminaon in the vicinity of our wells. There are no (0) potenal
sources of contaminaon idened for this system. The assessment results are available on the FDEP Source Water Assessment and
Protecon Program website at www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, sepc systems, agri-
cultural livestock operaons, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
14
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or expect-
ed risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
15
6,
SEMINOLE
COUNTY
I
le
lKlll\S
NIIIIK,\I
(
IICllC
I
--
-
Druid Hills Service AreaDruid Hills Service Area
W A T E R Q U A L I T Y R E S U L T S
Druid Hills Water System - PWS ID# 3590111
Inorganic Contaminants
Date of
MCL
Contaminant and Unit of
Sampling Violation Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement
(mo/yr)
Y/N
Barium (ppm) 05/18 N 0.0051 0.0051 2 2
Discharge of drilling wastes; discharge from metal refineries;
erosion of natural deposits
Fluoride (ppm) 05/18 N 0.26 0.26 4 4
Erosion of natural deposits; discharge from fertilizer and
aluminum factories. Water additive which promotes strong
teeth when at optimum level of 0.7 ppm
Nitrate (as Nitrogen) (ppm) 02/19 N 0.46 0.46 10 10
Runoff from fertilizer use; leaching from septic tanks, sewage;
erosion of natural deposits
Sodium (ppm) 05/18 N 16 16 N/A 160 Salt water intrusion, leaching from soil
Synthetic Organic Contaminants including Pesticides and Herbecides
Date of
MCL
Contaminant and Unit of MCLG or
Sampling Violation Level Detected Range of Results MCL or MRDL Likely Source of Contamination
Measurement MRDLG
(mo/yr)
Y/N
Dalapon (ppb) 01/19-12/19 N 1.1 ND - 1.1 200 200 Runoff from herbecide used on rights of way
Stage 2 Disinfectants/Disinfection By-Products
* For Bromate and Chlorine, the level detected is the highest running annual average (RAA), computed quarerly, of monthly averages of all samples collected. The Range of Results is the range of results of all the individual samples collected
during the past year.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all monitoring locations.
*** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individual samples results (lowest to highest for all monitoring
locations.
Date of
MCL
Contaminant and Unit of MCLG or
Sampling Violation Level Detected Range of Results MCL or MRDL Likely Source of Contamination
Measurement MRDLG
(mo/yr)
Y/N
Chlorine (ppm)
Seminole County
City of Altamonte Springs
01/19-12/19
7/19-12/19
N
N
0.96 *
1.1
0.45 - 1.69
0.2 - 2.2
MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
Haloacetic Acids (five)
(HAA5) (ppb)
Seminole County
City of Altamonte Springs
07/19
1/19-12/19
N
N
21.71 **
32.0 ***
16.59 - 21.71
13.2 - 36.7
NA MCL = 60 By-product of drinking water disinfection
Total Trihalomethanes
(TTHM) (ppb)
N
NA MCL = 80 By-product of drinking water disinfection
Seminole County
07/19
49.82 ** 35.83 - 49.82
N
City of Altamonte Springs
1/19-12/19
53.50 *** 28.3 - 57.1
Lead and Copper (Tap Water )
Date of
Number of sampling
Contaminant and Unit of AL Violation 90th Percentile
Sampling sites exceeding the MCLG AL Likely Source of Contamination
Measurement Y/N Result
(mo/yr)
AL
Copper (tap water) (ppm) 08/2018 N 0.23 0 1.3 1.3
Corrosion of household plumbing systems; erosion of natural
deposits; leaching from wood preservatives
Lead (tap water) (ppb) 08/2018 N 2.20 0 0 15
Corrosion of household plumbing systems, erosion of natural
deposits
The Fourth Unregulated Contaminant Monitoring Rule (UCMR4)
Purpose : To collect occurrence data for contaminants suspected to be present in drinking water but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Northeast Regional Water
Treatment Plant has been monitoring these unregulated contaminants as part of a study to help the US Environmental Protection Agency determine whether or not these contaminants need to be regulated. The UCMR
program is the primary source of drinking water contaminant occurence data used by EPA in regulatory determinations. If you would like more information on the EPA's Unregulated Contaminants Monitoring Rule,
please call the Safe Drinking Water Hotline at (800) 426-4791
Date of
Contaminant and Unit of Maximum
Sampling Average Level Range of Results
Likely Source of Contamination
Measurement Level
(mo/yr)
Haloacetic acids (HAA5)
(ppb)
3/19-8/19 33.3 21.6 11.9 - 33.3
By-product of drinking water disinfection
Haloacetic acids (HAA6Br)
(ppb)
3/19-8/19 11.6 7.7 6.58 -11.6
By-product of drinking water disinfection
Haloacetic acids (HAA9)
(ppb)
3/19-8/19 44.37 29.3 17.67 -44.37
By-product of drinking water disinfection
Total Organic Carbon (ppb) 3/19-8/19 1750 1121.8 718 - 1750
Naturally present in the environment
Bromide (ppb) 3/19-8/19 43.1 34.8 30.1 - 43.1
Naturally present in the environment
Manganese (ppb) 3/19-8/19 45.7 12.7 1.2 - 45.7
Naturally occurring element; used in steel production, fertilizer, batteries and fireworks
Geranium(ppb) 3/19-8/19 1.5 0.4 ND - 1.5
Naturally occurring element; byproduct of zonc ore processing, used in infrared optics, fiber
optics systems, electronic & solar applications
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
16
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
Back
to
Service
Area
Map
Drinking Water Quality Report-Lake
Brantley Consecutive Service Area 2019
Drinking Water Quality Report-Lake
Brantley Consecutive Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resources.
We are commied to ensuring the quality of your water. The drinking water for the Lake Brantley
Consecuve Service Area (PWS #3590685) is obtained from ground water wells, aerated to remove
hydrogen sulde, chlorinated for disinfecon, orthopolyphosphate is added for corrosion control. If
you have any quesons about this report or concerning your water ulity, please contact Seminole
County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated
otherwise, this report is based on the results of our monitoring for the period of January 1 to
December 31, 2019. Data obtained before January 1, 2019, and presented in this report are from the most recent tesng done in
accordance with the laws, rules and regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on Ulies Inc. of Florida, from whom we
purchase your drinking water. The assessment was conducted to provide informaon about any potenal sources of contaminaon in
the vicinity of their wells. There are six (6) potenal sources of contaminaon ranging from low to moderate suscepbility levels. The
assessment results are available on the FDEP Source Water Assessment and Protecon Program website at www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
17
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
18
6,
SEMINOLE
COUNTY
FIOKll,h
'\\II
IK\I
CIIOIC
I
- -
Lake Brantley Service AreaLake Brantley Service Area
W A T E R Q U A L I T Y R E S U L T S
Lake Brantley Consecutive Water System - PWS ID# 3590685
Radioactive Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling points
or the highest detected level at any sampling point, depending on the sampling frequency.
Date of
Contaminant and Unit of MCL Violation
Sampling Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement Y/N
(mo/yr)
Radium 226 + 228 or
combined radium (pCi/L)
02/17 N 2.3 0.7 - 2.3 0 5 Erosion of natural deposits
Utilities Inc. - Sanlando
Gross Alpha Emitters (pCi/L)
02/17 N 1.4 ND - 1.4 0 15 Erosion of natural deposits
Utilities Inc. - Sanlando
Inorganic Contaminants
Date of
Contaminant and Unit of MCL Violation
Sampling
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement Y/N
(mo/yr)
Barium (ppm)
Discharge of drilling wastes; discharge from metal refineries;
02/17 N 0.0135 0.0064 - 0.0135 2 2
Utilities Inc. - Sanlando
erosion of natural deposits
Sodium (ppm)
02/17 N 16.9 11.1 - 16.9 N/A 160 Salt water intrusion, leaching from soil
Utilities Inc. - Sanlando
Stage 2 Disinfectants/Disinfection By-Products
* For Bromate and Chlorine, the level detected is the highest running annual average (RAA), computed quarerly, of monthly averages of all samples collected. The Range of Results is the range of results of all the individual samples collected during
the past year.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all monitoring locations.
*** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individual samples results (lowest to highest for all monitoring locations.
Date of
Contaminant and Unit of MCL Violation MCLG or
Sampling
Level Detected Range of Results MCL or MRDL Likely Source of Contamination
Measurement Y/N MRDLG
(mo/yr)
Chlorine (ppm)
Seminole County
01/19 - 12/19
N
2.13* 0.46 - 3.02
MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
Utilities Inc - Sanlando
01/19 - 12/19
N
2.40
0.8 - 3.4
Haloacetic Acids (five)
(HAA5) (ppb)
N/A MCL = 60 By-product of drinking water disinfection
Seminole County
07/2018
N
12.83 ** 12.83
Utilities Inc - Sanlando
08/2019
N
23.9 ** 13.2 - 23.9
Total Trihalomethanes
(TTHM) (ppb)
N/A MCL = 80 By-product of drinking water disinfection
Seminole County
07/2018
N
33.53** 33.53
Utilities Inc - Sanlando
08/2018
N
50.4 ** 18.0 - 50.4
Lead and Copper (Tap Water)
Date of Number of sampling
Contaminant and Unit of AL Violation 90th Percentile
Sampling sites exceeding the MCLG AL Likely Source of Contamination
Measurement Y/N Result
(mo/yr)
AL
Copper (tap water) (ppm)
Corrosion of household plumbing systems; erosion of natural
08/18 N 0.116 0 1.3 1.3
Seminole County
deposits; leaching from wood preservatives
Lead (tap water) (ppb)
Corrosion of household plumbing systems, erosion of natural
08/18 N 2.6 0 0 15
Seminole County
deposits
The Fourth Unregulated Contaminant Monitoring Rule (UCMR4)
Purpose : To collect occurrence data for contaminants suspected to be present in drinking water but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Northeast Regional Water
Treatment Plant has been monitoring these unregulated contaminants as part of a study to help the US Environmental Protection Agency determine whether or not these contaminants need to be regulated. The UCMR
program is the primary source of drinking water contaminant occurence data used by EPA in regulatory determinations. If you would like more information on the EPA's Unregulated Contaminants Monitoring Rule, please
call the Safe Drinking Water Hotline at (800) 426-4791
Date of
Contaminant and Unit of
Sampling
Maximum Level Average Level Range of Results
Likely Source of Contamination
Measurement
(mo/yr)
Total Organic Carbon (ppb) 1/19 1160 404.545 ND - 1160
Naturally present in the environment
Bromide (ppb) 1/19 51.2 34.736 26 - 51.2
Naturally present in the environment
Manganese (ppb) 1/19 2.3 1.541 0.613 - 2.3
Natural occurrence from soil leaching
Bromochloroacetic acid (ppb)
1/19 3.52 3.11 2.7 - 3.52
Unavailable
Bronodichloroacetic acid (ppb)
1/19 5.42 4.88 4.34 - 5.42
Unavailable
Chlorodibromoacetic Acid (ppb)
1/19
1.49
1.335 1.18 - 1.49
Unavailable
Dibromoacetic acid (ppb) 1/19 0.838 0.734 0.63 - 0.838
Unavailable
Dichloroacetic acid (ppb)
1/19
7.85 6.98 6.11 - 7.85
Unavailable
Trichloroacetic acid (ppb)
1/19
9.31 8.335 7.36 - 9.31
Unavailable
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
19
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Back
to
Service
Area
Map
Drinking Water Quality Report-Meredith
Manor Service Area 2019
Drinking Water Quality Report-Meredith
Manor Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resources.
We are commied to ensuring the quality of your water. The drinking water for the Meredith Manor
Service Area (PWS #3590823) is obtained from ground water wells, aerated to remove hydrogen sul-
de, chlorinated for disinfecon, orthopolyphosphate is added for corrosion control. If you have any
quesons about this report or concerning your water ulity, please contact Seminole County Environ-
mental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated otherwise, this report is based
on the results of our monitoring for the period of January 1 to December 31, 2019. Data obtained before January 1, 2019, and
presented in this report are from the most recent tesng done in accordance with the laws, rules and regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on Ulies Inc. of Florida, from whom
we purchase your drinking water. The assessment was conducted to provide informaon about any potenal sources of contamina-
on in the vicinity of their wells. There are six (6) potenal sources of contaminaon idened for this system from low to moderate
suscepbility levels. The assessment results are available on the FDEP Source Water Assessment and Protecon Program website at
www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
20
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
G
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
21
6,
SEMINOLE
COUNTY
I
le
lKlll\S
NIIIIK,\I
(
IICllC
I
--
-
Meredith Manor Service AreaMeredith Manor Service Area
W A T E R Q U A L I T Y R E S U L T S
Meredith Manor Consecutive Water System - PWS ID# 3590823
Radioactive Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling points
or the highest detected level at any sampling point, depending on the sampling frequency.
Date of
Contaminant and Unit of MCL Violation
Sampling
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement Y/N
(mo/yr)
Radium 226 + 228 or
combined radium (pCi/L)
Utilities Inc. - Sanlando
02/17 N 2.3 0.7 - 2.3 0 5 Erosion of natural deposits
Gross Alpha Emitters (pCi/L)
02/17 N 1.4 ND - 1.4 0 15 Erosion of natural deposits
Utilities Inc. - Sanlando
Inorganic Contaminants
Date of
Contaminant and Unit of MCL Violation
Sampling
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement Y/N
(mo/yr)
Barium (ppm)
Utilities Inc. - Sanlando
02/17 N 0.0135 0.0064 - 0.0135 2 2
Discharge of drilling wastes; discharge from metal refineries;
erosion of natural deposits
Sodium (ppm)
02/17 N 16.9 11.1 - 16.9 N/A 160 Salt water intrusion, leaching from soil
Utilities Inc. - Sanlando
Stage 2 Disinfectants/Disinfection By-Products
* For Bromate and Chlorine, the level detected is the highest running annual average (RAA), computed quarerly, of monthly averages of all samples collected. The Range of Results is the range of results of all the individual samples collected during
the past year.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all monitoring locations.
*** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individaul samples results (lowest to highest for all monitoring locations.
Date of
Contaminant and Unit of MCL Violation MCLG or
Sampling
Level Detected Range of Results MCL or MRDL Likely Source of Contamination
Measurement Y/N MRDLG
(mo/yr)
Chlorine (ppm)
Seminole County
Utilities Inc - Sanlando
01/19 - 12/19
01/19 - 12/19
N
N
2.38 *
2.40
0.86 - 3.86
0.8 - 3.4
MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
Haloacetic Acids (five)
(HAA5) (ppb)
Seminole County
Utilities Inc - Sanlando
07/2019
08/2019
N
N
14.98 **
23.90**
14.98
13.2 - 23.90
N/A MCL = 60 By-product of drinking water disinfection
Total Trihalomethanes
(TTHM) (ppb)
N/A MCL = 80 By-product of drinking water disinfection
Seminole County
07/2019
N 32.02 ** 32.02
Utilities Inc - Sanlando
08/2019
N
50.40** 18.0 - 50.4
Lead and Copper (Tap Water)
Date of
Number of sampling
Contaminant and Unit of
AL Violation 90th Percentile
Sampling
sites exceeding the MCLG AL Likely Source of Contamination
Measurement
Y/N Result
(mo/yr)
AL
Copper (tap water) (ppm)
Seminole County
08/18 N 0.083 0 1.3 1.3
Corrosion of household plumbing systems; erosion of natural
deposits; leaching from wood preservatives
The Fourth Unregulated Contaminant Monitoring Rule (UCMR4)
Purpose : To collect occurrence data for contaminants suspected to be present in drinking water but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Northeast Regional Water
Treatment Plant has been monitoring these unregulated contaminants as part of a study to help the US Environmental Protection Agency determine whether or not these contaminants need to be regulated. The UCMR
program is the primary source of drinking water contaminant occurence data used by EPA in regulatory determinations. If you would like more information on the EPA's Unregulated Contaminants Monitoring Rule, please
call the Safe Drinking Water Hotline at (800) 426-4791
Date of
Contaminant and Unit of
Sampling Maximum Level Average Level Range of Results
Likely Source of Contamination
Measurement
(mo/yr)
Total Organic Carbon (ppb) 1/19 1160 404.545 ND - 1160
Naturally present in the environment
Bromide (ppb) 1/19 51.2 34.736 26 - 51.2
Naturally present in the environment
Manganese (ppb) 1/19 2.3 1.541 0.613 - 2.3
Natural occurrence from soil leaching
Bromochloroacetic acid (ppb)
1/19 3.52 3.11 2.7 - 3.52
Unavailable
Bronodichloroacetic acid (ppb)
1/19 5.42 4.88 4.34 - 5.42
Unavailable
Chlorodibromoacetic Acid (ppb)
1/19
1.49
1.335 1.18 - 1.49
Unavailable
Dibromoacetic acid (ppb) 1/19 0.838 0.734 0.63 - 0.838
Unavailable
Dichloroacetic acid (ppb)
1/19
7.85 6.98 6.11 - 7.85
Unavailable
Trichloroacetic acid (ppb)
1/19
9.31 8.335 7.36 - 9.31
Unavailable
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
22
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
Back
to
Service
Area
Map
Drinking Water Quality Report-
Northeast Service Area 2019
Drinking Water Quality Report-
Northeast Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resources.
We are commied to ensuring the quality of your water. The drinking water for the Northeast Service
Area (PWS #3590473) is obtained from ground water wells. The water is treated with ozone, ltered
with granular acvated carbon and is chlorinated for disinfecon purposes. We then uoridate for
dental health purposes. If you have any quesons about this report or concerning your water ulity,
please contact Seminole County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated
otherwise, this report is based on the results of our monitoring for the period of January 1 to December 31, 2019. Data obtained
before January 1, 2019 and presented in this report are from the most recent tesng done in accordance with the laws, rules and
regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on our system. The assessment was
conducted to provide informaon about any potenal sources of contaminaon in the vicinity of our wells. There is one (1) potenal
source of contaminaon idened for this system with a low suscepbility level. The assessment results are available on the FDEP
Source Water Assessment and Protecon Program website at www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
23
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
24
6,
SEMINOLE
COUNTY
FIOKll,h
'\\II
IK\I
CIIOIC
I
- -
Northeast Service AreaNortheast Service Area
W A T E R Q U A L I T Y R E S U L T S
Northeast Water System - PWS ID# 3590473
Water Quality Testing Results Table
Inorganic Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are
the highest average at any of the sampling points or the highest detected level at any sampling point, depending on the sampling frequency.
Date of
Contaminant and Unit of MCL Violation
Sampling
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement Y/N
(mo/yr)
Barium (ppm) 02/17 N 0.007 0.007 2 2
Discharge of drilling wastes; discharge from metal refineries;
erosion of natural deposits
Fluoride (ppm) 02/17 N 0.25 0.25 4 4
Erosion of natural deposits; discharge from fertilizer and
aluminum factories. Water additive which promotes strong
teeth when at the optimum level of 0.7 ppm
Nitrate (as Nitrogen) (ppm) 02/19 N 0.3 0.3 10 10
Runoff from fertilizer use; leaching from septic tanks, sewage;
erosion of natural deposits
Arsenic (ppb) 02/17 N 0.1 0.1 0 10
Erosion of natural deposits; runoff from orchards; runoff from
glass and electronics production wastes.
Sodium (ppm) 02/17 N 7.8 7.80 N/A 160 Salt water intrusion, leaching from soil
Stage 1 Disinfectants/Disinfection By-Products
For bromate, chloramines, or chlorine, the level detected is the highest running annual average (RAA), computed quarterly, of monthly averages of all samples collected. The range of results is the
range of results of all individual samples collected during the past year.
Date of
Contaminant and Unit of
MCL
MCLG or
Sampling
Level Detected Range of Results
MCL or MRDL Likely Source of Contamination
Measurement
Violation Y/N
MRDLG
(mo/yr)
Bromate (ppb) 01/19-12/19 N 0.00 0.00 - 0.00 MCLG = 0 MCL = 10 By-product of drinking water disinfection
Chlorine (ppm) 01/19-12/19 N 1.138 0.31-1.76 MRDLG=4 MRDL=4 Water additive used to control microbes
Stage 2 Disinfectants/Disinfection By-Products
* For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results
(lowest to highest) for all monitoring locations.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individual samples results
(lowest to highest) for all monitoring locations.
Date of
Contaminant and Unit of
MCL Violation
MCLG or
Sampling
Level Detected Range of Results
MCL or MRDL Likely Source of Contamination
Measurement
Y/N
MRDLG
(mo/yr)
Haloacetic Acids (HAA5)
(ppb)
11/2019 N 19.08 * 12.45 - 19.08 NA MCL = 60 By-product of drinking water disinfection
Total Trihalomethanes
11/2019 N 39.74 * 34.27 - 39.74 NA MCL = 80 By-product of drinking water disinfection
(TTHM) (ppb)
Lead and Copper (Tap Water )
Date of
Number of sampling
Contaminant and Unit of
AL Violation 90th Percentile
Sampling sites exceeding the
MCLG AL Likely Source of Contamination
Measurement
Y/N Result
(mo/yr)
AL
Copper (tap water) (ppm) 07/19 - 08/19 N 0.79 2 1.3 1.3
Corrosion of household plumbing systems; erosion of natural
deposits; leaching from wood preservatives
Lead (tap water) (ppb) 07/19 - 08/19 N 1.5 0 0 15
Corrosion of household plumbing systems, erosion of natural
deposits
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
25
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Back
to
Service
Area
Map
Drinking Water Quality Report-Northwest
Service Area 2019
Drinking Water Quality Report-Northwest
Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resourc-
es. We are commied to ensuring the quality of your water. The drinking water for the Northwest
Service Area (PWS #3594107) is obtained from ground water wells. The water is treated with ion
exchange, and ozone. It is chlorinated for disinfecon purposes and then uoridated for dental health
purposes. If you have any quesons about this report or concerning your water ulity, please contact
Seminole County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated
otherwise, this report is based on the results of our monitoring for the period of January 1 to December 31, 2019. Data obtained
before January 1, 2019, and presented in this report are from the most recent tesng done in accordance with the laws, rules and
regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on our system. The assessment was
conducted to provide informaon about any potenal sources of contaminaon in the vicinity of our wells. There are nine (9)
potenal sources of contaminaon idened for this system from low to moderate suscepbility levels. The assessment results are
available on the FDEP Source Water Assessment and Protecon Program website at www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
26
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
27
6,
SEMINOLE
COUNTY
I
le
lKlll\S
NIIIIK,\I
(
IICllC
I
--
-
Northwest Service AreaNorthwest Service Area
W A T E R Q U A L I T Y R E S U L T S
Northwest Water System - PWS ID# 3594107
Water Quality Testing Results Table
Radioactive Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling
points or the highest detected level at any sampling point, depending on the sampling frequency.
Contaminant and Unit of Date of Sampling MCL Violation
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement (mo/yr) Y/N
Radium 226 (pCi/L)
02/17 N 1.3 1.3 0 5 Erosion of natural deposits
Gross Alpha (incl Radon &
02/17 N 7.8 7.8 0 15 Erosion of natural deposits
Uranium) (pCi/L)
Inorganic Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling
points or the highest detected level at any sampling point, depending on the sampling frequency.
Contaminant and Unit of
Date of Sampling
MCL Violation
Level
Range of Results MCLG MCL Likely Source of Contamination
Measurement
(mo/yr)
Y/N
Detected
Discharge of drilling wastes; discharge from metal refineries;
Barium (ppm) 02/17 N 0.0094 0.0094 2 2
erosion of natural deposits
Erosion of natural deposits; discharge from fertilizer and aluminum
Fluoride (ppm) 02/17 N 0.42 0.42 4 4
factories. Water additive which promotes strong teeth when at the
optimum level of 0.7 ppm
Runoff from fertilizer use; leaching from septic tanks, sewage;
Nitrate (as Nitrogen) (ppm) 02/19 N 0.45 0.45 10 10
erosion of natural deposits
Sodium (ppm) 02/17 N 33 33.0 N/A 160 Salt water intrusion, leaching from soil
Stage 1 Disinfectants/Disinfection By-Products
For bromate, chloramines, or chlorine, the level detected is the highest running annual average (RAA), computed quarterly, of monthly averages of all samples collected. The range of results is the range of results of all individual samples
collected during the past year.
Contaminant and Unit of Date of Sampling MCL Violation Level MCLG or MCL or
Range of Results Likely Source of Contamination
Measurement (mo/yr) Y/N Detected MRDLG MRDL
Chlorine (ppm) 01/19-12/19 N 1.308 0.53-1.87 MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
Bromate (ppb) 01/19-12/19 N 0.000 0.0-0.0 MCLG = 0 MCL = 10 By-product of drinking water disinfection
Stage 2 Disinfectants/Disinfection By-Products
* For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all monitoring locations.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individaul samples results (lowest to highest) for all monitoring
locations.
Contaminant and Unit of
Date of Sampling
MCL Violation
Level
MCLG or
Range of Results
MCL or MRDL
Likely Source of Contamination
Measurement
(mo/yr)
Y/N
Detected
MRDLG
Haloacetic Acids (HAA5)
01/19-12/19 N 16.8525* 9.30-19.09 N/A MCL = 60 By-product of drinking water disinfection
(ppb)
Total Trihalomethanes
01/19-12/19 N 72.4725** 37.56-110.13 N/A MCL = 80 By-product of drinking water disinfection
(TTHM) (ppb)
Two (2) samples during 2019 had a TTHM result of 91.44, and 110.13 ppb respectively, which exceeds the MCL of 80 ppb. However, the system did not incur an MCL violation, because all annual average results at all sites were at or below the
MCL. Some people who drink water containing trihalomethanes in excess of MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer.
1st Quarter
2nd Quarter
3rd Quarter
4th Quarter
TTHM Monitoring Results (ppb)
2019
2019
2019
2019
NW - 79 4965 SR 46. Quarterly Results
37.56 72.11 110.13
69.99
NW - 79 4965 SR 46. LRAA
47.6950 56.1925 69.2250
72.4475
NW - 64 1924 Bridgewater Dr. Quarterly Results
58.59 65.77 57.90
91.44
NW - 64 1924 Bridgewater Dr. LRAA
72.4725 71.8600 64.1650
68.4250
Lead and Copper (Tap Water )
Number of
Contaminant and Unit of Date of Sampling 90th Percentile
AL Violation Y/N
sampling sites MCLG AL Likely Source of Contamination
Measurement (mo/yr) Result
exceeding the AL
Corrosion of household plumbing systems; erosion of natural
Copper (tap water) (ppm) 07/2017 N 0.27 0 1.3 1.3
deposits; leaching from wood preservatives
Corrosion of household plumbing systems, erosion of natural
Lead (tap water) (ppb) 07/2017 N 3.00 0 0 15
deposits
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
28
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
Back
to
Service
Area
Map
Drinking Water Quality Report-
Southeast Service Area 2019
Drinking Water Quality Report-
Southeast Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resources.
We are commied to ensuring the quality of your water. The drinking water for the Southeast Service
Area (PWS #3590571) is obtained from ground water wells. The water is ozonated, ltered with
granular acvated carbon, chlorinated for disinfecon, then uoridate for dental health purposes. If
you have any quesons about this report or concerning your water ulity, please contact Seminole
County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated
otherwise, this report is based on the results of our monitoring for the period of January 1 to December 31, 2019. Data obtained
before January 1, 2019, and presented in this report are from the most recent tesng done in accordance with the laws, rules and
regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on our system. The assessment was
conducted to provide informaon about any potenal sources of contaminaon in the vicinity of our wells. There are two (2) potenal
sources of contaminaon idened for this system with low suscepbility levels. The assessment results are available on the FDEP
Source Water Assessment and Protecon Program website at www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
29
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
30
6,
SEMINOLE
COUNTY
FIOKll,h
'\\II
IK\I
CIIOIC
I
- -
... ... ... ...
Southeast Service AreaSoutheast Service Area
W A T E R Q U A L I T Y R E S U L T S
Southeast Water System - PWS ID# 3590571
Water Quality Testing Results Table
Inorganic Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling
points or the highest detected level at any sampling point, depending on the sampling frequency.
Contaminant and Unit of
Measurement
Date of
Sampling
(mo/yr)
MCL
Violation
Y/N
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Arsenic (ppb) 02/17 N 0.13 0.13 0 10
Erosion of natural deposits; runoff from orchards; runoff from
glass and electronics production wastes
Barium (ppm) 02/17 N 0.0097 0.0072 - 0.0097 2 2
Discharge of drilling wastes; discharge from metal refineries;
erosion of natural deposits
Erosion of natural deposits; discharge from fertilizer and
Fluoride (ppm) 02/17 N 0.59 0.55 - 0.59 4 4 aluminum factories. Water additive which promotes strong
teeth when at the optimum level of 0.7 ppm
Nitrate (as Nitrogen) (ppm) 2/19 N 0.56 0.10-0.56 10 10
Runoff from fertilizer use; leaching from septic tanks, sewage;
erosion of natural deposits
Selenium (ppb) 02/17 N 1.0 1 50 50
Discharge from petroleum and metal refineries; erosion of
natural deposits; discharge from mines
Sodium (ppm) 02/17 N 15.0 11.0 - 15.0 NA 160 Salt water intrusion, leaching from soil
Stage 1 Disinfectants/Disinfection By-Products
For bromate, chloramines, or chlorine, the level detected is the highest running annual average (RAA), computed quarterly, of monthly averages of all samples collected. The range of results is the range of results of all individual samples collected
during the past year.
Date of
MCL
Contaminant and Unit of
MCLG or
Sampling
Violation Level Detected Range of Results
MCL or MRDL Likely Source of Contamination
Measurement
MRDLG
(mo/yr)
Y/N
Chlorine (ppm) 01/19-12/19 N 1.215 0.28 - 1.93 MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
Bromate (ppb) 01/19-12/19 N 0.00 0.0-0.0 MCLG = 0 MCL = 10 By-product of drinking water disinfection
Stage 2 Disinfectants/Disinfection By-Products
* For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all
monitoring locations.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individaul samples results (lowest to highest) for all monitoring locations.
Date of MCL
Contaminant and Unit of
MCLG or
Sampling Violation Level Detected Range of Results
MCL or MRDL Likely Source of Contamination
Measurement
MRDLG
(mo/yr) Y/N
Haloacetic Acids (HAA5)
01/19-12/19 N 27.9950** 15.41-32.72 NA MCL = 60 By-product of drinking water disinfection
(ppb)
Total Trihalomethanes
01/19-12/19 N 67.9900** 38.13-88.20 NA MCL = 80 By-product of drinking water disinfection
(TTHM) (ppb)
One (1) sample during 2019 had a TTHM result of 88.20 ppb, which exceeded the MCL of 80 ppb. However, the system did not incur an MCL violation, because all annual average results at all sites were at or below the MCL. Some people who drink
water containing trihalomethanes in excess of MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer.
1st Quarter 2nd Quarter 3rd Quarter
4th Quarter
TTHM Monitoring Results (ppb)
2019
2019
2019
2019
SE - 126 1104 Citrus Oaks Run.
Quarterly Results
38.13 47.05 88.20 56.24
SE - 126 1104 Citrus Oaks Run.
LRAA
50.0325 42.6125 55.5175 57.4050
Lead and Copper (Tap Water )
Date of
90th
Number of
Contaminant and Unit of AL Violation
Sampling Percentile sampling sites MCLG AL Likely Source of Contamination
Measurement Y/N
(mo/yr)
Result
exceeding the AL
Corrosion of household plumbing systems; erosion of natural
Copper (tap water) (ppm) 07/2017 N 0.2 0 1.3 1.3
deposits; leaching from wood preservatives
CorrosionA40:J46 of household plumbing systems, erosion of
Lead (tap water) (ppb) 07/2017 N 5.40 1 0 15
natural deposits
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
31
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Back
to
Service
Area
Map
Drinking Water Quality Report-Southwest
Service Area 2019
Drinking Water Quality Report-Southwest
Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the
eorts we make to connually improve the water treatment process and protect our water resources.
We are commied to ensuring the quality of your water. The drinking water for the Southwest
Service Area (PWS #3590785) is obtained from ground water wells and is chlorinated for disinfecon
and then uoridated for dental health purposes. If you have any quesons about this report or con-
cerning your water ulity, please contact Seminole County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated
otherwise, this report is based on the results of our monitoring for the period of January 1 to De-
cember 31, 2019. Data obtained before January 1, 2019, and presented in this report are from the
most recent tesng done in accordance with the laws, rules and regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on our system. The assessment was
conducted to provide informaon about any potenal sources of contaminaon in the vicinity of our wells. There are two (2) po-
tenal sources of contaminaon idened for this system with low suscepbility levels. The assessment results are available on the
FDEP Source Water Assessment and Protecon Program website at www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
32
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
G
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
33
6,
SEMINOLE
COUNTY
I
le
lKlll\S
NIIIIK,\I
(
IICllC
I
--
-
Southwest Service AreaSouthwest Service Area
W A T E R Q U A L I T Y R E S U L T S
Southwest Water System - PWS ID# 3590785
Water Quality Testing Results Table
Inorganic Contaminants
Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are
the highest average at any of the sampling points or the highest detected level at any sampling point, depending on the sampling frequency.
Date of
MCL
Contaminant and Unit of Level Range of
Sampling Violation
MCLG MCL Likely Source of Contamination
Measurement Detected Results
(mo/yr)
Y/N
Discharge of drilling wastes; discharge from metal refineries; erosion
Barium (ppm) 02/17 N 0.0091 0.0091 2 2
of natural deposits
Erosion of natural deposits; discharge from fertilizer and aluminum
Fluoride (ppm) 02/17 N 0.65 0.65 4 4 factories. Water additive which promotes strong teeth when at the
optimum level of 0.7 ppm
Runoff from fertilizer use; leaching from septic tanks, sewage;
Nitrate (as Nitrogen) (ppm) 02/19 N 0.46 0.46 10 10
erosion of natural deposits
Sodium (ppm) 02/17 N 8.6 8.6 N/A 160 Salt water intrusion, leaching from soil
Stage 2 Disinfectant/Disinfection By-Products
* For Bromate and Chlorine, the level detected is the highest running annual average (RAA), computed quarterly, of monthly averages of all samples collected. The Range of Results is range of results
of all the individual samples collected during the past year.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results
(lowest to highest) for all monitoring locations
*** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individual samples
results (lowest to highest) for all monitoring locations.
Date of
MCL
Contaminant and Unit of Level Range of MCLG or MCL or
Sampling Violation
Likely Source of Contamination
Measurement Detected Results MRDLG MRDL
(mo/yr)
Y/N
Chlorine (ppm) 01/19-12/19 N
1.365*
0.41-1.93 MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
Haloacetic Acids (HAA5)
01/19 N 13.57** 11.28-13.57 N/A MCL = 60 By-product of drinking water disinfection
(ppb)
Total Trihalomethanes
01/19 N 31.80** 25.23-31.80 N/A MCL = 80 By-product of drinking water disinfection
(TTHM) (ppb)
Lead and Copper (Tap Water )
Number of
Date of
AL
90th
Contaminant and Unit of
sampling sites
Sampling
Violation
Percentile
MCLG AL Likely Source of Contamination
Measurement
exceeding the
(mo/yr)
Y/N
Result
AL
Corrosion of household plumbing systems; erosion of natural
Copper (tap water) (ppm) 07/2017 N 0.45 0 1.3 1.3
deposits; leaching from wood preservatives
Corrosion of household plumbing systems, erosion of natural
Lead (tap water) (ppb) 07/2017 N 2.10 1 0 15
deposits
The Fourth Unregulated Contaminant Monitoring Rule (UCMR4)
Purpose : To collect occurrence data for contaminants suspected to be present in drinking water but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Northeast
Regional Water Treatment Plant has been monitoring these unregulated contaminants as part of a study to help the US Environmental Protection Agency determine whether or not these
contaminants need to be regulated. The UCMR program is the primary source of drinking water contaminant occurence data used by EPA in regulatory determinations. If you would like more
information on the EPA's Unregulated Contaminants Monitoring Rule, please call the Safe Drinking Water Hotline at (800) 426-4791
Date of
Contaminant and Unit of Maximum
Range of
Sampling Average Level
Likely Source of Contamination
Measurement Level
Results
(mo/yr)
05/2019
HAA5 (ppb)
12.934 11.52 9.706 -12.934
By-product of drinking water disinfection
11/2019
05/2019
HAA6Br (ppb) 5.82 5.074 4.171 -5.82
By-product of drinking water disinfection
11/2019
05/2019
HAA9 (ppb) 18.034 16.002 13.289 -18.034
By-product of drinking water disinfection
11/2019
05/2019
Bromide (ppb) 27.067 65.1605 25.254 -27.067
By-product of drinking water disinfection
11/2019
05/2019
Manganese (ppb) 0.868 0.826 0.784 -0.868
By-product of drinking water disinfection
11/2019
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
34
6,
SEMINOLE
COUNTY
FIORID\S N\IIIR,1I
Ci
IOIC
E
-
~-
...
,~
Back
to
Service
Area
Map
Drinking Water Quality Report-Sun Shadows
Consecutive Service Area 2019
Drinking Water Quality Report-Sun Shadows
Consecutive Service Area 2019
We are pleased to present you this year’s Annual Water Quality Report. This report is designed to
inform you about the quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to understand the ef-
forts we make to connually improve the water treatment process and protect our water resources. We
are commied to ensuring the quality of your water. The drinking water for the Sun Shadows Consecu-
ve Service Area (PWS #3594216) is obtained from ground water wells which are aerated to remove
hydrogen sulde, ltered with granular acvated carbon, chlorinated for disinfecon, and orthopoly-
phosphate is added for corrosion control. If you have any quesons about this report or concerning
your water ulity, please contact Seminole County Environmental Services at 407-665-2110.
Seminole County Environmental Services Department rounely monitors for contaminants in your
drinking water according to Federal and State laws, rules and regulaons. Except where indicated
otherwise, this report is based on the results of our monitoring for the period of January 1 to
December 31, 2019. Data obtained before January 1, 2019, and presented in this report are from the most recent tesng done in
accordance with the laws, rules and regulaons.
Source Water Assessment Plan
In 2019, the Department of Environmental Protecon performed a Source Water Assessment on City of Casselberry, from whom we
purchase your drinking water. The assessment was conducted to provide informaon about any potenal sources of contaminaon
in the vicinity of their wells. There are eleven (11) potenal sources of contaminaon idened for this system with low suscepbility
levels. The assessment results are available on the FDEP Source Water Assessment and Protecon Program website at
www.dep.state..us/swapp.
EPA Would Like You to Know
The sources of drinking water (both tap water and boled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.
As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases,
radioacve material, and can pick up substances resulng from the presence of animals or from human acvity.
Contaminants that may be present in source water include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runo,
industrial or domesc wastewater discharges, oil and gas producon, mining, or farming.
(C) Pescides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runo, and
residenal uses.
(D) Organic chemical contaminants, including synthec and volale organic chemicals, which are by-products of industrial
processes and petroleum producon, and can also come from gas staons, urban stormwater runo, and sepc systems.
(E) Radioacve contaminants, which can be naturally occurring or be the result of oil and gas producon and mining acvies.
In order to ensure that tap water is safe to drink, the EPA prescribes regulaons, which limit the amount of certain contaminants in
water provided by public water systems. The Food and Drug Administraon (FDA) regulaons establish limits for contaminants in
boled water, which must provide the same protecon for public health.
Drinking water, including boled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that the water poses a health risk. More informaon about contaminants
and potenal health eects can be obtained by calling the Environmental Protecon Agency’s Safe Drinking Water Hotline at 1-800-
426-4791.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
35
6,
SEMINOLE
COUNTY
flOKll)AS NAllJK
AI
Onn
- -
--•:F.,
:.-,-
Water Quality Parameters
The City of Casselberry and the Florida Department of Environmental Protecon (FDEP) have a set of Water Quality Parameters
established for the City’s drinking water system that allow the City to more eciently monitor the drinking water system for its
potenal to corrode lead and copper pipes. From May 8 to June 5, 2019, the alkalinity fell below the established range of 90-150
mg/L CaCO3 equivalent, with the lowest recorded value being 82 mg/L CaCO3 equivalent, resulng in a violaon of the City’s Water
Quality Parameters with FDEP. Alkalinity levels outside the established range can impact the eecveness of the corrosion control ad-
dive the City uses to prevent metals such as lead and copper from plumbing, household xtures, or older service lines from entering
into the water distribuon system via pipe corrosion. It is possible that during the period of lowered alkalinity, trace amounts of lead
and copper from house-hold xtures and plumbing may have corroded into the drinking water. It is unknown how much, if any, may
have corroded, but levels were not such that it would be considered an emergency. No acon was needed to be taken by consumers
and no alternave water supplies were needed. However, the City is in the process of developing an alkalinity study to determine
whether the established Water Quality Parameters need to be adjusted.
Some people may be more vulnerable to contaminants in drinking water than the general populaon. Immuno-compromised
persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/
AIDS or other immune system disorders, some elderly, and infants can be parcularly at risk from infecons. These people should
seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infecon by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-
426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in
drinking water is primarily from materials and components associated with service lines and home plumbing. Seminole County Envi-
ronmental Services is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumb-
ing components. When your water has been sing for several hours, you can minimize the potenal for lead exposure by ushing
your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Informaon on lead in drinking water, tesng methods, and steps you can take to minimize
exposure is available from the Safe Drinking Water Hotline or at hp://www.epa.gov/safewater/lead.
Sign up for e-billing now at
www.seminolecountyfl.gov
SIGN UP
FOR AN
IRRIGATION
EVALUATION
TODAY
WATERING RESTRICTION SCHEDULE
EVEN HOUSE #’S THURSDAY AND SUNDAY
ODD HOUSE #’S WEDNESDAY AND SATURDAY
NON-RESIDENTIAL TUESDAY AND FRIDAY
RECLAIM CUSTOMERS
TWO DAYS PER WEEK
FIX THAT LEAKY
FAUCET OR TOILET!
Leaks can account for, on aver-
age, 10,000 gallons of water
wasted in the home every year,
which is enough to fill a
backyard swimming pool!
Terms and Abbreviaons
Acon Level (AL): The concentraon of a contaminant which, if exceeded, triggers treatment or other requirements that a water
system must follow.
Maximum Contaminant Level or MCL: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to
the MCLGs as feasible using the best available treatment technology.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
36
6,
SEMINOLE
COUNTY
FIOKll,h
'\\II
IK\I
CIIOIC
I
- -
Terms and Abbreviaons (Connued)
Maximum Contaminant Level Goal or MCLG: The level of a contaminant in drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing
evidence that addion of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or
expected risk to health. MRDLGs do not reect the benets of the use of disinfectants to control microbial contaminants.
“ND” means not detected and indicates that the substance was not found by laboratory analysis.
Parts per billion (ppb) or Micrograms per liter (µg/l): one part by weight of analyte to 1 billion parts by weight of the water sample.
Parts per million (ppm) or Milligrams per liter (mg/l): one part by weight of analyte to 1 million parts by weight of the water
sample.
Picocurie per liter (pCi/L): measure of the radioacvity in water.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Annual Drinking Water Quality Report-2019Annual Drinking Water Quality Report-2019
37
6,
SEMINOLE
COUNTY
I
le
lKlll\S
NIIIIK,\I
(
IICllC
I
--
-
Sunshadows Service AreaSunshadows Service Area
W A T E R Q U A L I T Y R E S U L T S
Sun Shadows Consecutive Water System - PWS ID# 3594216
Inorganic Contaminants
Date of
MCL
Contaminant and Unit of
Sampling Violation
Level Detected Range of Results MCLG MCL Likely Source of Contamination
Measurement
(mo/yr)
Y/N
Barium (ppm)
Discharge of drilling wastes; discharge from metal refineries;
05/17 N 0.02 0.009 - 0.017 2 2
City of Casselberry
erosion of natural deposits
Erosion of natural deposits; discharge from fertilizer and
Fluoride (ppm)
05/17 N 0.29 0.27 - 0.29 4 4
aluminum factories. Water additive which promotes strong teeth
City of Casselberry
when at optimum level of 0.7 ppm
Nitrate (as Nitrogen)(ppm)
Runoff from fertilizer use; leaching from septic tanks, sewage;
02/19 N 0.23 ND - 0.23 10 10
City of Casselberry
erosion of natural deposits
Sodium (ppm)
05/17 N 13 8.9 - 13.0 N/A 160 Salt water intrusion, leaching from soil
City of Casselberry
Stage 2 Disinfectants/Disinfection By-Products
* For Chlorine, the level detected is the highest running annual average (RAA), computed quarerly, of monthly averages of all samples collected. The Range of Results is the range of results of all the individual samples collected during the past year.
** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest detected level at any sampling point. Range of Results is the range of individual sample results (lowest to highest) for all monitoring locations.
*** For Haloacetic Acids (HAA5) or Total Trihalomethanes (TTHM), the level detected is the highest locational running annual average (LRAA). Range of Results is the range of individual samples results (lowest to highest for all monitoring locations.
Date of MCL
Contaminant and Unit of MCLG or
Sampling Violation Level Detected Range of Results MCL or MRDL Likely Source of Contamination
Measurement MRDLG
(mo/yr)
Y/N
Chlorine (ppm)
1.09 * 0.31 - 1.60
MRDLG = 4 MRDL = 4.0 Water additive used to control microbes
N
01/19 - 12/19
Seminole County
1.37 0.35 - 2.2
N
2019
City of Casselberry
Haloacetic Acids (five)
(HAA5) (ppb)
NA MCL = 60 By-product of drinking water disinfection
42.01 ** 24.85 - 42.01
02/19 - 11/19
N
Seminole County
2
9.39** 14.24 - 29.39
01/19 - 12/19
N
City of Casselberry
Total Trihalomethanes
(TTHM) (ppb)
NA MCL = 80 By-product of drinking water disinfection
69.37***
53.19 - 88.05***
02/19 - 11/19
N
Seminole County
67.31** 32.30 - 67.31
02/19 - 11/19
N
City of Casselberry
One (1) sample during 2019 had a TTHM result of 80.05, which exceeds the MCL of 80 ppb. However, the system did not incur an MCL violation, because all annual average results at all sites were at or below the MCL. Some people who drink
water containing trihalomethanes in excess of MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer.
4th Quarter
1st Quarter 2nd Quarter 3rd Quarter
TTHM Monitoring Results (ppb)
2019
Site 1 ** SS - 4 Sunbranch Ln Quarterly
Results
2019
2019
2019
61.68 88.05 68.35
59.41
Site 1 ** SS - 4 Sunbranch Ln LRAA
60.00 64.025 67.3225
69.3725
*Reported LRAA for quarters 1-3 are based on results from previous quarters not reported on this table.
**Pursuant to 26-550.730(1)(b)8... Legal addresses, or the best descriptions possible shall be given for each sampling point.
Lead and Copper (Tap Water)
Date of
Number of sampling
Contaminant and Unit of AL Violation 90th Percentile
Sampling sites exceeding the MCLG AL Likely Source of Contamination
Measurement Y/N Result
(mo/yr)
AL
Copper (tap water) (ppm)
Corrosion of household plumbing systems; erosion of natural
08/18
0.36
0 1.3 1.3
N
Seminole County
deposits; leaching from wood preservatives
N
City of Casselberry
07/17
0.23
Lead (tap water) (ppb)
Corrosion of household plumbing systems, erosion of natural
0 0 15
City of Casselberry 07/17 N 1.5 deposits
Download
Save PDF to desktop
Email
Email completed PDF
Send for Signing
Email for others to sign
Print
Print document
Choose a Field
Click on a field and
select the person that should complete it
Want to add a signature?
You can add a signature field
and assign it to someone else
to sign
Choose a Field
Click on a field and
select the person that should complete it

Annual Drinking Water Quality Report-2019Annual Drinking Water Quality (Seminole County Government)

This document is locked as it has been sent for signing.

You have successfully completed this document.

Other parties need to complete fields in the document. You will recieve an email notification when the document has been completed by all parties.

This document has been signed by all parties.

Completed 22 January 2021

Message

View Audit Log
Print With Audit Log
Duplicate Document