The 9/20/18 Boil Advisory for 134 Belle Terre to 207 Belle Terre, 1 to 14 Laurelwood, 102 Laurelwood, Downing Drive and Marilyn Drive has been recinded. All water samples were cleared.
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The Water We Drink
ST TAMMANY WATER DISTRICT 3
Public Water Supply ID: LA1103056
We are pleased to present to you the Annual Water Quality Report for the year 2017. This
report is designed to·inform you about the quality of your water and services we deliver to you every
day (Este informe contiene información muy importante sobre su agua potable. Tradúzcalo o hable con
alguien que lo entienda bien). Our constant goal is to provide you with 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 committed to ensuring the quality of your
water.
Our water source(s) are listed below:
Source Name Source Water Type
COUNTRY CLUB WELL Ground Water
RIVERWOOD WELL Ground Water
The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams,
ponds, reservoirs, springs, and wells. As water travels over the surface of land or through the ground, it
dissolves naturally-occurring minerals and, in some cases,radioactive material, and can pick up
substances resulting from the presence of animals or from human activity. Contaminants that may be
present in source water include:
Microbial Contaminants - such as víruses and bacteria, which may come from sewagetreatment plants, septic systems, agricultural livestock
operations, and wildlife.
Inorganic Contaminants - such as salts and metals, which can be naturally-occurring or result from urban stormwater runoff, industrial, or
domestic wastewater discharges, oil and gas production, mining, or farming.
Pesticidesand Herbicides - which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.
Organic Chemical Contaminants- including synthetic and volatile organic chemicals, which are by-products of industrial processesand
petroleum production, and can also come from gasstations, urban stormwater runoff, and septic systems.
Radioactive Contaminants-which can be naturally-occurring or be the result of oil and gas production and mining activities.
A Source Water Assessment Plan (SWAP)is now available from our office. This plan is an
assessment of a delineated area around our listed sources through which contaminants, if present,
could migrate and reach our source water. lt also includes an inventory of potential sources of
contamination within the delineated area, and a determination of the water supply's susceptibility to
contamination by the identified potential sources. According to the Source Water Assessment Plan, our
water system had a susceptibility rating of 'MEDIUM'. If you would like to review the Source Water
Assessment Plan, please feel free to contact our office.
ln order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the
amount of certain contaminants in water provided by public.water systems. Food and Drug
Administration regulations establish limits for contaminants in bottled water which must provide the
same protection for public health. We want our valued customers to be informed about their water
utility. If you have any questions about this report, want to attend any scheduled meetings, or simply
want to learn more about your drinking water, please contact BRENTCORDELL at 985-373-6417.
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If present, elevated levels of lead can cause serious health problems, especiaUy for pregnant
women and young children. Lead in drinking water is primarily from materials and components
associated with service lines and home plumbing. ST TAMMANY WATER DISTRICT 3 is responsible for
providing high quality drinking water, but cannot control the variety of materials used in plumbing
components. When your water has been sitting for several hours, you can minimize the potential for
lead exposure by flushing 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.
Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is
available from the Safe Drinking Water Hotline or at http:Uwww.epa.gov/safewater/lead.
The Louisiana Department of Health and Hospitals - Office of Public Health routinely monitors
for constituents in your drinking water according to Federal and State laws. The tables that follow show
the results of our monitoring during the period of January 1st to December 31st, 2017. Drinking water,
including bottled water, may reasonably be expected to contain at least small amounts of some
contaminants. The presence of contaminants does not necessarily indicate that water poses a health
risk.
ln the tables below, you will find many terms and abbreviations you might not be familiar with.
To help you better understand these terms, we've provided the following definitions:
Parts per million (ppm) or Milligrams per liter (mg/L) - one part per million corresponds to one minute ln two years or a single penny in
$10,000.
Parts per billion (ppb) or Micrograms per liter (ug/L)- one part per billion corresponds to one minute in 2,000 years, or a single penny in
$10,000,000.
Picocuries per liter (pCi/Ll - picocuríes per liter is a measure of the radioactivity in water.
Treatment Technique {TI)- an enforceable procedure or level of technological performance which public water systems must follow to ensure
control of a contaminant.
Action level (AL)- the concentration of a contaminant that, if exceeded, triggers treatment or other requirements that a water system must
follow.
Maximum contaminant level (MCL) - the "Maximum Allowed" MCL is the highest level of a contaminant that is allowed in drinking water.
MCL's are set as close to the MCLG's asfeasible usíng the best available treatment technology.
Maximum contaminant level goal {MCLG) -the "Goal" isthe level of a contaminant in drinking water below which there is no known or
expected risk to human health. MCLG's allow for a margin of safety.
Maximum residual disinfectant level ( MRDL)-The highest level of a disinfectant allowed in drinking water. There is convincing evidence that
addition of a disinfectant is necessary for control of microbial contaminants.
Maximum residual disinfectant level goal (MRDLG) - The level of a drinking water disinfectant below whìch there is no known or expected risk
to health. MRDLGs do not reflect the benefits ofthe use of disinfectants to control microbial contaminants.
level 1 assessment-A study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have
been found in our water system.
level 2 Assessment -A very detailed study of the water system to identify potential problems and determine (if possible) why an E. coli MCL
violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.
During the period covered by this report we had the below noted violations.
Compliance Period Analyte Type
7/1/2017-6/30/2017 CONSUMER CONFIDENCE RULE CCR REPORT
10/1/2017-2/6/2018 CONSUMER CONFIDENCE RULE
CCR
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ADEQUACY/AVAILABILITY/CONTENT
Our water system tested a minimum of 3 samples per month in accordance with the Total
Coliform Rulefor microbiological contaminants. With the microbiological samples collected, the water
systeni collects disinfectant residuals to ensure control of microbial growth.
•
Highest
Disinfectant Date Unit Range MRDL MRD LG Typical Source
,
RAA
2017 ppm 4 4 .Water additive used to control microbes
ln the tables below, we have shown the regulated contaminants that were detected. Chemical
Sampling of our drinking water may not be required on an annual basis; therefore, information provided
in this table refers back to the latest year of chemical sampling results.
Regulated Collection Highest
Range Unit MCL MCLG Typical Source
Contaminants Date Value
BARIUM 12/10/2015 0.018 0.017- ppm 2 2 Discharge of drilling wastes; Discharge from
0.018 metal refineries; Erosion of natural deposits
FLUORIDE 12/10/2015 0.17 0.16- ppm 4 4 Erosion of natural deposits; Water additive
0.17 which promotes strong teeth; Discharge from
fertilizer and aluminum factories
NITRATE-NITRITE 3/22/2017 0.035 0.033- ppm 10 10 Runoff from fertilizer use; Leaching from septic
0.035 tanks, sewage; Erosion of natural deposits
Collection Highest
Radionuclides Range Unit MCL MCLG Typical Source
Date Value
COMBINED 12/10/2015 0.728 0.728 pCi/1 5 o Erosion of natural deposits
RADIUM (-
226 &-228)
Lead and 9QTH Sites
Date Range Unit AL Typical Source
Copper Percentile Over AL
COPPER, 2014-2016 0.2 0.1- 0.3 ppm 1.3 o Corrosion of household plumbing systems;
FREE Erosion of natural deposits; Leachingfrom wood
preservatives
LEAD · 2014-2016 3 1-10 ppb 15 o Corrosion of household plumbing systems;
Erosion of natural deposits
Disinfection Highest
Sample Point Period Range Unit MCL MCLG Typical Source
Byproducts LRAA
TOTAL HALOACETIC By-product of drinking
20 DENI COURT 2017 o 0-0 ppb 60 o
-ACIDS(HAAS} water disinfection
TOTAL HALOACETIC By-product of drinking
8 PAILETDRIVE 2017 o 0-0 ppb 60 o
ACIDS(HAAS) water disinfection
1.3 - By-product of drinking
TTHM 20 DENI COURT 2017 1 ppb 80 o
1.3 water chlorination
1.5- By-product of drinking
TTHM 8 PAILETDRIVE 2017 2 ppb 80 o
1.5 water chlorination
I Secondary Contaminants I Collection Date Highest Value Range Unit I SMCL
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CHLORIDE 12/10/2015 4.1 4- 4.1 MG/L 250
IRON 12/10/2015 0.035 0.035 MG/L 0.3
MANGANESE 12/10/2015 0.096 0.069- 0.096 MG/L o.os
PH 12/10/2015 8.4 8.2 - 8.4 su 8.5
SULFATE 12/10/2015 8.5 8.4- 8.5 MG/L 250
+++++++++++++++Environmental Protection Agency Required Health Effects Language+++++++++++++++
Some people may be more vulnerable to contaminants in drinking water than the general population.
lmmuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who
have undergone organ transplants, people with HIVIAIDSor other immune system disorders, some
elderly, and infants can be particularly at riskfrom infections. These people should seek advice about
drinking water from their health care providers. EPA/CDC guideJines on appropriate means to lessen the
risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe
Drinking Water Hotline (800-426-4791).
Additional Required Health Effects Language:
Coliforms are bacteria that are naturally present in the environment and are used as an indicator that
other, potentially-harmful, bacteria may be present. Coliforms were found in more samples than
allowed and this was a warning of potential problems.
There are no additional required health effects violation notices.
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Thank you for allowing usto continue providing your family with clean, quality water this year.
ln order to maintain a safe and dependable· water supply we sometimes need to make improvements
that will benefit all of our customers.
We at the ST TAMMANY WATERDISTRICT 3 work around the clock to provide top quality
drinking water to every tap. We ask that all our customers help us protect and conserve our water
sources, which are the heart of our community, our way of life, and our children's future. Please call our
office if you have questions.