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Agenda Item 4CAGENDA ITEM # 4C JUNE 11, 2012 CITY OF ATLANTIC BEACH CITY COMMISSION MEETING STAFF REPORT AGENDA ITEM: Annual Water Quality Report SUBMITTED BY: Donna Kaluzniak, Utility Director DATE: May 31, 2012 BACKGROUND: A copy of the 2011 Water Quality Report for the City of Atlantic Beach is provided for the City Commission's review. The Florida Department of Environmental Protection requires annual water quality reports be mailed to all customers by the first of July every year. The City is required to test for over 80 drinking water contaminants, but only those detected during analysis are included in the report. As shown, detected values were within the levels allowed and we had no violations of water quality limits. BUDGET: A total of $600 is budgeted in the Water Fund for printing the reports, under account numbers 400 - 5502 -533 -4700. RECOMMENDATION: No action necessary. The report is provided for information only. ATTACHMENTS: 1. 2011 Atlantic Beach Water Quality Report REVIEWED BY CITY MANAGER: i 4 ' - I t �• �' ��' �'� is k r ,;: l' . I r„ •�d l� l' f ' ti ' .. _ � !! �4,+.� . , _ d!+�e1��Cr � f'�..`, +� �. k 2� [ �r� r '°f' 1 111 �'! ��P�'�!.'..�1",�+r".� ![F�� : �'7G r •. � r': l�..i r * f;.,� 4 r•r,3 : ii � I. .1 17Jfn ,�' r'. I a -I 4: _•It1 Ir•e p:: I[- $5r !a + . j T „ •.r ?F� •'.' 1 • r 1: r " {• 1- I I r i.. . r_ }:' r }. I y {y -''!T - ,� � � °• }T, - • - r� ••1 :.i�� �, � � � d�.: ..i + h9;1 y }':I.• L �'.,;'S - '1�,.', Vp isr L { 1 s r'r {{ .h' �F •�, +• !I 1. IS '.�.M 4 �•. -..•' q - ' �' - _ ,ems. fE.::, FI• +I':� "1 �- ,:1 „ h 1 - is Gl '.: L, +I. 4 h�, +'a• - '. .IL "r. I 4'' }�h- [ - i,�r': sY' 7a .r, " ' � � J :1`1 f �i ' Yd�'� V� 33` =Jy:�i •� � �,'.,�. i�i'� �•ji = I � J F i ., T' :: ";r'J I:., � I JT± - ' • h` 7.. 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I 1 r�r �'i :'�S� y Y# -Y.'R'.': I• s:t, f - TT , .1 h;1 li I.:; 'y}�2����I•f .I + "�t ",`. 1• # i �_7�:a Vrl 7 y '+�, sto Ia�:IS� 5J} { p Al qe, h pit Yw d )'V i, 4 ff L J P f 9 P 6�Ll 1% . . . . . . L A .. .. lw V r PIP es-p A A�q ­U r I I 7w Its 1A '1. 6 �-) F t OL. p - �'.����-- '�`,+, Y � ` J } " r + ��Je+" L4 r4 J- J kL T r, : - 2 — . i . I ­ .L - - = P P� V. Tr A. A W-. 5. of R, m AGENDA ITEM # 4C JUNE 11, 2012 In the table you will find many terms and abbreviations you might not be familiar with. To help you better understand these terms, we have provided the following definitions: Action Level (AL) — The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow. Initial Distribution System Evaluation (IDSE )—An important part of the Stage 2 Disinfection Byproducts Rule (DBPR). The IDSE is a one -time study conducted by water systems to identify distribution system locations with high concentrations of trihalomethanes (THMs) and haloacetic acids (HAAs). Water systems will use results from the IDSE, in conjunction with their Stage 1 DBPR compliance monitoring data, to select compliance monitoring locations for the Stage 2 DBPR. 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 expected risk to health. MCLGs allow for a margin of safety. Maximum Residual Disinfectant Level (MRDL) – The highest level of a disinfectant allowed in drinking water. There is a 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. Non - Detects (ND) — Means not detected and indicates that the substance was not found by laboratory analysis. Not Applicable (N /A) – The information does not apply in this category or for this contaminant. Parts per billion (ppb) or Micrograms per liter (ug/L) – One part by weight of analyte to one 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 one million parts by weight of the water sample. Picocuries per liter (pCi/1) – Measure of the radioactivity in 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 the 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: (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 runoff, industrial or domestic wastewater discharges, oil and gas production, mining or farming. (C) Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses. (D) 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. (E) Radioactive contaminants, which can be naturally occurring or be the result of oil and gas production and mining activities. WATER QUALITY DATA 2011 MICROBIOLOGICAL CONTAMINANTS Contaminant and Dates of MCL Highest Likely Source of Unit of Measure sampling Violation Monthly MCLG MCL Contamination mo./ r.) Y/N Number For systems collecting fewer 1. Total Colifonn than 40 samples per month: Naturally present Bacteria (positive 05/2011 N 1 0 presence of coliform bacteria in in the environment samples) >1 sample collected during a month. AGENDA ITEM # 4C .TUNE 11, 2012 RADIOACTIVE CONTAMINANTS (Results in the Level Detected column for radioactive confarnfnants, inorganic, contaminants, synthetic organic contaminants including/ pesticides and herbicides, and volatile oryarric contaminants are the highest average at any of the sampling points or the highest detected /eve f at any sampling} point, de. ends g on the sampllnq frequency..) Contaminant Dates of MCL Level Range of Likely Source and Unit of sampling Violation Detected Results MCLG MCL of Measure (mo./yr.) Y/N Contamination 7. Radium 226 + 09/2011 Erosion of 228 or combined 11/2011 N 0.4 ND - 0.4 0 5 natural deposits radium Ci/L INORGANIC CONTAMINANTS Contaminant and Dates of MCL Level Range of Likely Source of Unit of Measure sampling Violation Detected Results MCLG MCL Contamination (mo./ r. ) Y/N Discharge of drilling wastes; 12. Barium (ppm) 03/2011 N 0.024 ND - 0.024 2 2 discharge from metal refineries; erosion of natural deposits Discharge from metal refineries and 13. Beryllium (ppb) 03/2011 N 0.2 ND - 0.2 4 4 coal - burning factories; discharge from electrical, aerospace, and defense industries Erosion of natural deposits; discharge from fertilizer and alumhrum factories. Water additive 17. Fluoride (ppm) 03/2011 N 0.78 0.68-0.78 4 4.0 which promotes strong teeth when at optimum levels between 0.7 and 1.3 ppm Residue from man -made pollution 18. Lead (point of 03/2011 N 0.3 ND - 0.3 0 15 such as auto emissions and paint; entry) (ppb) lead pipe, casing, and solder Salt water intrusion, leaching from 24. Sodium (ppm) 03/2011 N 17.0 12.0-17.0 N/A 160 soil VOLATILE ORGANIC CONTAMINANTS 03/2011 06/2011 Discharge from petroleum factories; 76. Xylenes (ppm) 08 /2011 N 0.87 ND - 0.87 10 10 discharge from chemical factories 10/2011 11 /2011 STAGE 1 DISINFECTANTS AND DISINFECTION BY- PRODUCTS For broniare, chloramines, or chlorine, the level detected is the the highest running annual average (PAA), computer) quarterly, of monthly averages of all samples collected. For haloacetic acids or 7 11 M, the level detected is the highest RAA, computed quarterly, of quarterly averages of all samples collected if the system is monitoring quarterly or is the average of all samples taken during the year if the system monitor's less frequently than quarterly. Range of Results is the range of individual sample results (lowest to highest) for all monitoring locations, including Initial distribution System Evaluation (i0SE) results as well as Stage 1 compliance results, Disinfectant or Dates of MCL or MRDL Level Range of MCLG or MCL or Likely Source of Contaminant and sampling Violation Detected Results MRDLG MRDL Contamination Unit of Measure (mo. /yr.) Y/N 79. Chlorine (ppm) N 1A 0.2 - 2.8 M RDLG = MRDL = 4.0 Water additive used to control 2011 .4 4 microbes 80.1laloacetic By- product water Acids (five) 07 /2011 N 22.2 15.01 - 39.20 NA MCL = 60 disinfection AAS 6 81. TTHM [Total By- product of drinking water trihalomethanes] 07/2011 N 60.1 31.86 - 84.89 NA MCL = 80 disinfection b LEAD AND COPPER (TAP WATER Contaminant and Dates of AL 90 m No. of sampling sites AL (Action Likely Source of Unit of Measure sampling Exceeded Percentile exceeding the MCLG Level) Contamination (mo. /yr.) Y/N Result AL Corrosion of household 85. Copper (tap 07 12011- N 0.16 0 1.3 1.3 plumbing systems; erosion of water) (ppm) 09/2011 natural deposits; leaching from wood preservatt ves Corrosion of household 86. Lead (tap 0712011- N 1.6 0 0 15 plumbing systems, erosion of water) (ppb) 09/2011 natural deposits