Surfside Homeowners Association

Transcription

1 Surfside Homeowners Association Water System Manager's Report Water System Operations Report: July, 2018 (= Million Gallons) Meter Read Period: 05/31/ THRU - 06/29/2018 (Mg/L= milligrams per liter) (Ug/L= micrograms per liter) (MCL= Maximum Contaminant Level) (c.f.= Cubic Feet) Total Water Produced in 2018 (TWP) Total Metered Water use in Total Water Main Flushing Water in Total Other Authorized Water Use in Total Authorized Consumption in 2018 (TAC) Total Distribution System Leakage in 2018 (DSL) Percentage of DSL in % 12 Month Running Total of TWP 12 Month Running Total of TAC 12 Month Running Total of DSL Month Average of Percentage of DSL 13.7% % Water Use Efficiency Chart TWP TAC DSL Page 1 of 11

2 Residential Meters: 1,875 Commercial Meters: 6 Surfside Meters: 15 Metered Services Residential 1,880 1,878 1,876 1,874 1,872 1,870 1,868 1,866 1,864 1,862 1,860 1,858 1,856 1,854 1,852 1,850 1,848 1,846 1,844 1,842 1,840 Average Distribution Color (June): Average Distribution Chlorine (June): Average Distribution Temperature (June): HU Mg/L 0 F Water Quality Report Microbial Routine Coliform Bacteria: Repeat Coliform Bacteria: GWR Coliform Bacteria: Investigative Coliform Bacteria: Construction Coliform Bacteria: Water Quality Report Running Annual Average - Inorganic Disenfection Byproducts - Sample Site #1 (RAA): Disenfection Byproducts - Sample Site #2 (RAA): Good Bad TTHM HAA ug/l ug/l Page 2 of 11

3 Disinfection Byproducts Distribution System 70 DBP Disinfection Byproducts Distribution System 70 DBP Water System Activities Service Calls in 2018 Locates in 2018 Distribution Leaks Repaired in 2018 Main Breaks in 2018 New Water Services in 2018 Decommissioned Services in Water Main Replacement Feet of Water Main Replaced in 2018 Valves Installed / Replaced in 2018 Fire Hydrants Installed / Replaced in 2018 Feet of right-away restored in , Page 3 of 11

4 Members Leak Report Leak Letters Mailed in 2018 Leak Investigated in 2018 Leaks Resolved in 2018 Leaks Unresolved ATEC Treatment Plant Report (MCL.3 mg/l) Iron (FE) Raw Iron (FE) Treated (MCL.05 mg/l) Manganese (MN) Raw Manganese (MN) Treated ATEC Treatment Plant mg/l mg/l mg/l mg/l FE RAW FE TREATED MCL Jun-17 Jul-17 Aug-17 Sep-17 Oct-17 Nov-17 Dec-17 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 ATEC Treatment Plant MN RAW MN Treated MCL 0.00 Jun-17 Jul-17 Aug-17 Sep-17 Oct-17 Nov-17 Dec-17 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 Page 4 of 11

5 Carbon Treatment Plant Report (MCL 15 Hu) Color Raw Color Finished UV-245 Raw UV-245 Lead UV-245 Lag Hu Hu nm nm nm Carbon Treatment Plant Color Raw Color Treated 0.0 Dec-17 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 Carbon Treatment Plant UV 245 Raw UV 245 Lead UV 245 Lag Dec-17 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 Page 5 of 11

6 High Water Use Previous Read Date: 5/31/2018 Current Read Date: Cubic Feet Gallons Gal Per Day 11,074 82,834 2,856 No Leak Days 9,430 70,536 2,432 8,616 64,448 2,222 No Leak 3-7 Days 8,414 62,937 2,170 No Leak 3-7 Days 7,724 57,776 1,992 Continuous Leak 8-14 Days 6,439 48,164 1,661 No Leak 3-7 Days 6,109 45,695 1,576 No Leak 1-2 Days 5,863 43,855 1,512 No Leak Days 5,677 42,464 1,464 Intermittent Leak Days 5,636 42,157 1,454 Intermittent Leak Days 5,454 40,796 1,407 Continuous Leak 35 Days 5,411 40,474 1,396 Intermittent Leak 35 Days 5,219 39,038 1,346 Continuous Leak 35 Days 4,913 36,749 1,267 No Leak Days 4,864 36,383 1,255 Intermittent Leak Days 4,771 35,687 1,231 No Leak 1-2 Days 4,698 35,141 1,212 No Leak 1-2 Days 4,687 35,059 1,209 No Leak Days 4,630 34,632 1,194 Continuous Leak 35 Days 4,486 33,555 1,157 Continuous Leak 35 Days 4,286 32,059 1,105 No Leak 8-14 Days 4,206 31,461 1,085 Intermittent Leak Days 4,164 31,147 1,074 4,164 4,123 31,147 30,840 1,074 1,063 Intermittent Leak Days No Leak 3-7 Days 1,085,034 Gallons of Water Is equal to 13.3% Of total metered residential water Used by 1.3% Residential metered services 6/29/2018 Percent of Residentual Water Used by Top 1.3% of Residentual Water Users 40.0% 37.5% 35.0% 32.5% 30.0% 27.5% 25.0% 22.5% 20.0% 17.5% 15.0% 12.5% 10.0% Page 6 of 11

7 Cross Connection Control Report Compliance Letters Mailed in Cross Connection Investigations in Cross Connection Questionnaires in Backflow Assemblies Installed in Backflow Assemblies Tested in Backflow Assemblies Replaced in Pending Questionnaires 8 Total Number of Backflow Assemblies Installed 151 Number of Cross Connection Hazards Pending Removal 16 Number of Cross Connection Hazards Pending Investigation 5 Number of Water Services Locked Off for Cross Connection Compliance 8 Page 7 of 11

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10 SURFSIDE HOMEOWNERS ASSOCIATION 2017 WATER QUALITY REPORT Microbial Testing: Coliform bacteria are present in the environment and feces of all warm-blooded animals and humans. Coliform bacteria are unlikely to cause illness. However, their presence in drinking water indicates that disease-causing organisms (pathogens) could be in the water system. Therefore, test that show and indication of coliform bacteria are tested for the presence of the more dangerous E. Coli Bacteria. Surfside tests for coliform bacteria regularly. In 2017, a total of 21 routine coliform bacteria samples were collected and analyzed by a Washington State certified laboratory. None of the samples had coliform bacteria present. In addition, Surfside takes multiple investigative samples when installing new pipe and after repairs to existing pipe. None of the investigative samples had coliform bacteria present. Disinfection Byproducts (DBPs) Chlorine is a strong oxidizing agent introduced into water in order to destroy pathogenic microbes, to oxidize taste/odor-forming compounds, and to form a disinfectant residual so water can reach the consumer tap safe from microbial contamination. These disinfectants may react with naturally present organic matter to produce a range of (DBPs). Epidemiological studies have looked at the associations between exposure to DBPs in drinking water with cancers, adverse birth outcomes and birth defects. Meta-analyses and pooled analyses of these studies have demonstrated consistent associations for bladder cancer and for babies being born small for gestational age, but not for congenital anomalies (birth defects). Early-term miscarriages have also been reported in some studies. The exact putative agent remains unknown, however, in the epidemiological studies since the number of DBPs in a water sample are high and exposure surrogates such as monitoring data of a specific by-product (often total trihalomethanes) are used in lieu of more detailed exposure assessment. The World Health Organization has stated that "the risk of death from pathogens is at least 100 to 1000 times greater than the risk of cancer from DBPs and the "risk of illness from pathogens is at least 10,000 to 1,000,000 times greater than the risk of cancer from DBPs". Washington State has adopted the United States Environmental Protection Agencies recommended maximum contaminant level (MCL) for DBPs. Surfside has two sample sites where it collects DBP samples once a quarter. To be in compliance, Surfside s Running Annual Average of quarterly samples must be below the MCL. The MCL for TTHM is 80 ug/l. The MCL for HAA5 is 60 ug/l. The following charts show that Surfside was in compliance for DBPs in (1 ug/l = 1 part per billion. A way to visualize one part per billion (ppb) in water is to think of it as one drop in one billion drops of water or about one drop of water in an Olympic size swimming pool.) Page 1 of 2 Page 10 of 11

11 Sample Site DBP 3 rd Quarter th Quarter st Quarter nd Quarter & G St. TTHM 67.8 ug/l 68.6 ug/l 60.5 ug/l 57.1 ug/l 304 th & Stackpole TTHM 63.3 ug/l 67.0 ug/l 61.4 ug/l 57.2 ug/l 295 & G St. HAA ug/l 20.2 ug/l 14.2 ug/l 14.0 ug/l 304 th & Stackpole HAA ug/l 9.5 ug/l 3.2 ug/l 2.7 ug/l Surfside was in compliance with the DBPs MCL rule in 2017 and the first 2 quarters of Synthetic Organic Chemicals (SOCs): SOCs are organic (carbon based) chemicals used as pesticides, defoliants, fuel additives and as ingredients for other organic compounds. They are all man made and do not naturally occur in the environment. SOCs most often enter the natural environment through application of pesticide as part of a legally discharged waste stream, improper or illegal waste disposal, accidental releases or as a byproduct of incineration. SOCs are generally toxic and can have substantial health impacts from both acute (short-term) and chronic (long-term) exposure. Many are known carcinogens (cancer causing). EPA has set Maximum Contaminant Levels (MCL) for SOCs under the Safe Drinking Water Act. The Safe Drinking Water Act requires that all water sources of all public water systems be periodically monitored for regulated SOCs. Analyte Name Result MCL Compliance Units Endrin Yes ug/l Lindane Yes ug/l Methoxychlor Yes ug/l Alachlor Yes ug/l Aldrin Yes ug/l Chlordane Yes ug/l Dieldrin Yes ug/l Heptachlor Yes ug/l Heptachlor Epoxide Yes ug/l Hexachlorobenzene Yes ug/l Propachlor Yes ug/l PCB (as total arochlors) Yes ug/l Page 2 of 2 Page 11 of 11