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CCR for 2023

The Water We Drink

DOYLINE WATERWORKS DISTRICT 1

Public Water Supply ID: LA1119008  

               We are pleased to present to you the Annual Water Quality Report for the year 2023.  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 NameSource Water Type
WELL #3, WEST COLLEGE ST.Ground Water
WELL #6, PILGRIMS REST (EAST)Ground Water
WELL #5, PILGRIMS REST (WEST)Ground Water
WELL #1, WEST COLLEGE ST.Ground Water
WELL #2, COLLEGE AND STRONGGround 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 viruses and bacteria, which may come from sewage treatment 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.

Pesticides and 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 processes and petroleum production, and can also come from gas stations, 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.  It 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.

               In 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 STAN BROWN at 318-745-2628.

               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. DOYLINE WATERWORKS DISTRICT 1 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://www.epa.gov/safewater/lead.

               The Louisiana Department of 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, 2023.  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.

               In 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 in 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/L) – picocuries per liter is a measure of the radioactivity in water.

Treatment Technique (TT) – 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 as feasible using the best available treatment technology.

Maximum contaminant level goal (MCLG) – the “Goal” is the 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 which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the 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 PeriodAnalyteType
12/29/2023GROUNDWATER RULEFAILURE ADDRESS DEFICIENCY (GWR)

Our water system tested a minimum of 2 samples per month in accordance with the Total Coliform Rule for microbiological contaminants.  With the microbiological samples collected, the water system collects disinfectant residuals to ensure control of microbial growth.

DisinfectantDateHighestRAAUnitRangeMRDLMRDLGTypical Source
        
CHLORINE                               20231.4ppm0.78 – 1.6344Water additive used to control microbes.

Our water system grade is “C”.  Our water system report card can be found at:

https://ldh.la.gov/assets/oph/Center-EH/drinkingwater/Watergrade/WaterGrade-2023/Webster/LA1119008_WaterGrade_2023.pdf

               In 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.  To determine compliance with the primary drinking water standards, the treated water is monitored when a contaminant is elevated in the source water.

Source Water Regulated ContaminantsCollection DateHighest ValueRangeUnitMCLMCLGTypical Source
ARSENIC3/17/202110 – 1ppb100Erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes
BARIUM3/17/20210.320 – 0.32ppm22Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits
FLUORIDE3/17/20210.40.2 – 0.4ppm44Erosion of natural deposits;  Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories
Treated Water Regulated ContaminantsCollection DateHighest ValueRangeUnitMCLMCLGTypical Source
No Detected Results were Found in the Calendar Year of 2022
Source Water Radiological ContaminantsCollection DateHighest ValueRangeUnitMCLMCLGTypical Source
COMBINED RADIUM (-226 & -228)3/17/20212.230 – 2.23pCi/l50Erosion of natural deposits
GROSS ALPHA PARTICLE ACTIVITY3/17/20212.320 – 2.32pCi/l150Erosion of natural deposits
GROSS BETA PARTICLE ACTIVITY3/17/20212.730 – 2.73pCi/l500Decay of natural and man-made deposits. Note: The gross beta particle activity MCL is 4 millirems/year annual dose equivalent to the total body or any internal organ.  50 pCi/L is used as a screening level.
Treated Water Radiological ContaminantsCollection DateHighest ValueRangeUnitMCLMCLGTypical Source
No Detected Results were Found in the Calendar Year of 2022
COPPER, FREE2020-20210.20.1 – 0.6ppm1.30Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservatives
LEAD202141 – 7ppb150Corrosion of household plumbing systems; Erosion of natural deposits
Lead and CopperDate90TH PercentileRangeUnitALSites Over ALTypical Source
Disinfection ByproductsSample PointPeriodHighest LRAARangeUnitMCLMCLGTypical Source
TOTAL HALOACETIC ACIDS (HAA5)259 STRONG STREET2022-202333.4ppb600By-product of drinking water disinfection
TOTAL HALOACETIC ACIDS (HAA5)SCOTT AND MAIN202265.7ppb600By-product of drinking water disinfection
TTHM259 STRONG STREET20221919.2ppb800By-product of drinking water chlorination
TTHMSCOTT AND MAIN20222727.2ppb800By-product of drinking water chlorination
Source Secondary ContaminantsCollection DateHighest ValueRangeUnitSMCL
ALUMINUM3/17/20210.020 – 0.02MG/L0.2
CHLORIDE3/17/20219857 – 98MG/L250
IRON3/17/2021.22.02-0.22MG/L.03
MANGANESE3/17/2021.040-0.4MG/L.05
PH3/17/20218.437.43 – 8.43PH8.5
SULFATE3/17/202130 – 3MG/L250
Treated Secondary ContaminantsCollection DateHighest ValueRangeUnitSMCL
IRON10/30/2023.19.19MG/L0.3
MANGANESE10/30/2023.0404MG/L0.05
Unresolved significant deficiencies that were identified during a survey done on the water system are shown below.
Date IdentifiedFacilityCodeActivityDue DateDescription
      
09/20/2021BOOSTER PUMPS AT GST20MG58   GWR APPROVED CORRECTIVE ACTION PLAN12/28/2022LAC 51:XII.319.D.2 and LAC 51:XII.135.A – Dedicated standby power shall be provided by any community water supply and any non-community water supply serving a hospital so that water can be treated and/or pumped to the distribution system during power outages to meet the average daily demand during the month of maximum water use. A standby power supply shall be provided through a dedicated portable or in-place auxiliary power of adequate supply and connectivity.
09/20/2021BOOSTER PUMPS AT GST20MG58   GWR APPROVED CORRECTIVE ACTION PLAN9/29/2022LAC 51:XII.319.D.2 and LAC 51:XII.135.A – Dedicated standby power shall be provided by any community water supply and any non-community water supply serving a hospital so that water can be treated and/or pumped to the distribution system during power outages to meet the average daily demand during the month of maximum water use. A standby power supply shall be provided through a dedicated portable or in-place auxiliary power of adequate supply and connectivity.
09/20/2021BOOSTER PUMPS AT GST20MG58   GWR ADDRESS TT45 DEFICIENCIES1/6/2022LAC 51:XII.319.D.2 and LAC 51:XII.135.A – Dedicated standby power shall be provided by any community water supply and any non-community water supply serving a hospital so that water can be treated and/or pumped to the distribution system during power outages to meet the average daily demand during the month of maximum water use. A standby power supply shall be provided through a dedicated portable or in-place auxiliary power of adequate supply and connectivity.
09/20/2021BOOSTER PUMPS AT GST20MG58   GWR APPROVED CORRECTIVE ACTION PLAN4/6/2022LAC 51:XII.319.D.2 and LAC 51:XII.135.A – Dedicated standby power shall be provided by any community water supply and any non-community water supply serving a hospital so that water can be treated and/or pumped to the distribution system during power outages to meet the average daily demand during the month of maximum water use. A standby power supply shall be provided through a dedicated portable or in-place auxiliary power of adequate supply and connectivity.
09/20/2021BOOSTER PUMPS AT GST20MG58   GWR APPROVED CORRECTIVE ACTION PLAN7/5/2022LAC 51:XII.319.D.2 and LAC 51:XII.135.A – Dedicated standby power shall be provided by any community water supply and any non-community water supply serving a hospital so that water can be treated and/or pumped to the distribution system during power outages to meet the average daily demand during the month of maximum water use. A standby power supply shall be provided through a dedicated portable or in-place auxiliary power of adequate supply and connectivity.
8/27/2023ELEVATED STORAGE TANK20SE14GQR ADDRESS TT45 DEFIEIENCIES12/4/2023LAC 51:XII.319.D.9 and 315.A – All public water supply wells, treatment units, tanks, etc., shall be located inside a fenced area that is capable of being locked; said areas shall be locked when unattended. The fence shall be resistant to climbing and at least 6 feet high.;
8/27/2023GROUND STORAGE TANK20ST14GWR ADDRESS TT45 DEFIEIENCIES12/4/2023LAC 51:XII.319.D.14 and 337.C – Any vent, overflow, or water level control gauge provided on tanks or other structures containing water for any potable water supply shall be constructed so as to prevent the entrance of birds, insects, dust or other contaminating material. Openings or vents shall face downward and shall be not less than 2 feet above the floor of a pump room, the roof or cover of a tank, the ground surface or the surface of other water supply structures.;  
8/27/2023WELL #1, WEST COLLEGE ST.20OT103GWR ADDRESS TT45 DEFICIENCIES12/4/2023LAC 51:XII.319.D.25 – All potable water systems shall be designed, constructed and maintained so as to prevent leakage of water due to defective materials, improper jointing, corrosion, settling, impacts, freezing, or other causes. Valves and blow-offs shall be provided so that necessary repairs can be made with a minimum interruption of service.
8/27/2023WELL #5, PILGRIMS REST (WEST)20SO38BGWR ADDRESS TT45 DEFICIENCIES12/4/2023LAC 51:XII.319.D.7 – There shall be no pathway for contamination into the well casing or discharge piping. The sanitary seal shall be maintained to prevent the introduction of contamination into the well casing and discharge piping.;

+++++++++++++++Environmental Protection Agency Required Health Effects Language+++++++++++++++

Some people may be more vulnerable to contaminants in drinking water than the general population. 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 particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines 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).

There are no additional required health effects notices.

There are no additional required health effects violation notices.

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               Thank you for allowing us to continue providing your family with clean, quality water this year.  In 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 DOYLINE WATERWORKS DISTRICT 1 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.  Additional information on the water system can be found at www.ldh.la.gov/watergrade.  Please call our office if you have questions.  318-377-6138 or 318-745-3498