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St. Tammany Water District #3
                                                                                   
PWS ID # 1103056


12/05/2018




For Immediate Release to Water System Customers
___________________________


The boil advisory for:

Magnolia Ln.

Woodvine Court

All of Riverwood East

102-135 Belle Terre Blvd.


Has been rescinded, all samples were cleared.

                                           

       The Water We Drink 




    ST TAMMANY WATER DISTRICT

      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. 




























  Page 2 




               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 














                                                               Page 3 




                                                                                   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 














                           










                                                                                             Page 4 






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. 














   +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
           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. 













  
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