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08 2016 PUBLIC HEALTH GOAL (PHG) REPORT
• Agenda Item 8 fi AGENDA REPORT Reviewed. City Manager Finance Director 411A MEETING DATE: JULY 5, 2016 TO: JEFFREY C. PARKER, CITY MANAGER FROM: DOUGLAS S. STACK, DIRECTOR OF PUBLIC WORKS/CITY ENGINEER SUBJECT: 2016 PUBLIC HEALTH GOAL (PHG) REPORT SUMMARY The California Health and Safety Code requires that operators of large water utility systems periodically prepare a report and conduct a public hearing regarding the health of the water supplied to customers. For the 2013-2015 reporting period, the drinking water quality of the City of Tustin Water Services complied with all California Department of Public Health and USEPA drinking water standards. While Tustin's water system exceeded the public health goals (PHG) for arsenic, uranium, coliform bacteria, lead, and copper, these levels remained below the EPA's action levels and the City remains in overall compliance with all regulatory water quality standards and no additional treatment programs are required. RECOMMENDATION It is recommended that the City Council take the following actions: 1. Conduct a public hearing to accept and respond to public comments on the 2016 Public Health Goal Report; and 2. At the conclusion of the public hearing, approve the 2016 Public Health Goal Report. FISCAL IMPACT There is no fiscal impact associated with this item. DISCUSSION Provisions of the California Health and Safety Code specify that California water utility systems with more than 10,000 service connections periodically prepare a report and conduct a public hearing if contaminants are detected above the PHGs adopted by the California Environmental Protection Agency's Office of Environmental Health Hazard Assessment (OEHHA) or above the maximum contaminant level goals (MCLGs) adopted by the United States Environmental Agency (USEPA). Overall, the City is in compliance with all regulatory water quality standards. However, for the 2013- 2015 reporting period, Tustin's water system exceeded the PHGs for arsenic, uranium, coliform bacteria, lead, and copper, but still remained below the EPA's level's for mandatory action. All other water quality monitoring results are less than the state PHG or federal MCLG. The PHG for arsenic is 0.004 parts per billion and MCL is 10 parts per billion. Low levels of arsenic have been found in Tustin's groundwater source less than the detection limit for purposes of reporting (DLR) of 2.0 parts per billion. Tustin also purchases some treated surface water from 2016 Public Health Goal Report July 5, 2016 Page 2 Metropolitan Water District (MWD). This source has detection as high as 2.3 parts per billion from 2013-2015. Arsenic is naturally occurring element found throughout the earth's crust and the levels were below the MCL at all times. For uranium, the PHG is 0.43 pico curies/liter and MCL is 20 pico curies/liter. Lab studies detected low levels of uranium in the City's groundwater wells averaging less than 1.1 pico curies/liter from 2013-2015. In the water purchased from MWD, uranium was detected in average of 2.7 pico curies/liter. The levels from both sources were below the MCL at all times. Coliform bacteria is an indicator organism that is used to determine the effectiveness of water disinfection efforts. It is not unusual for a public water system to have an occasional positive sample. The MCL for coliform is 5% positive samples in any month and the MCLG is zero. For this reporting period, Tustin's water system had a highest monthly positive sample of 2.8% and the levels were below the MCL at all times. While there is no drinking water MCL for lead and copper, the California Department of Public Health (CDPH) has adopted a not be exceed action level for lead and copper at the 90th percentile value of all samples from household taps. Based on 2015 sampling data from Tustin's water system, the 90th percentile values for lead and copper were no more than 7 parts per billion and 0.38 parts per million, respectively. These values exceed the PHG levels of 0.2 parts per billion for lead and 0.3 parts per million for copper, but are lower than the regulatory action levels of 15 parts per billion for lead and 1.3 parts per million for copper. In light of Flint, Michigan, and the issues surrounding lead contamination, it is important to note Flint's distribution system had 15,000 lead service lines. This is the water service line that connects the water main to the meter. Tustin Water Service has no lead service lines in its distribution system. Nationwide, most lead service lines were installed between 1920 and 1950. About 30% of the nation's water systems have lead service lines. Most are in the Midwest, Southeast, and Mid -Atlantic. Installing lead pipes and fixtures in homes and business was prohibited in 1986 when Congress updated the Safe Drinking Water Act. The drinking water quality of the City of Tustin Water Services meets all CDPH and USEPA drinking water standards set to protect public health. Consequently, no further action is required by the City and staff is requesting the City Council to approve the report upon the conclusion of the public hearing. boAas. Stack, P.E. Dir or of Public Works/City Engineer Attachment(s): 1. 2016 Public Health Goal (PHG) Report 2. Consumer Confidence Reports 2014, 2015, 2016 ATTACHMENT 1 2016 PUBLIC HEALTH GOAL (PHG) REPORT TUSTIN SUILMN6 UUK UUIUK1 I0UR. CAST CITY OF TUSTIN 2016 PUBLIC HEALTH GOAL REPORT JUNE 2016 861 Village Oaks Drive, Suite 100 • Covina, California 91724 Phone: (626) 967-6202 • FAX: (626) 331-7065 • Web site: www.stetsonengineers.com Northern California Southern California Arizona • Colorado STETSON ENGINEERS INC. 2016 Public Health Goal Report City of Tustin 1.0 Introduction Under the Calderon -Sher Safe Drinking Water Act of 1996 public water systems in California serving greater than 10,000 service connections must prepare a report containing information on 1) detection of any contaminant in drinking water at a level exceeding a Public Health Goal (PHG), 2) estimate of costs to remove detected contaminants to below the PHG using Best Available Technology (BAT), and 3) health risks for each contaminant exceeding a PHG. This report must be made available to the public every three years. The initial report was due on July 1, 1998, and subsequent reports are due every three years thereafter. This report has been prepared to address the requirements set forth -in Section 116470 of the California Health and Safety Code. It is based on water quality analyses during calendar years 2013, 2014, and 2015 or, if certain analyses were not performed during those years, the most recent data available. The report has been designed to be as informative as possible, without unnecessary duplication of information contained in the Consumer Confidence Reports, which are mailed to customers by July 1St of each year. There are no regulations explaining requirements for the preparation of PHG reports. A workgroup of the Association of California Water Agencies (ACWA) Water Quality Committee has prepared suggested guidelines for water utilities to use in preparing PHG reports. The ACWA guidelines were used in the preparation of this report. These guidelines include tables of cost estimates for BAT. The State of California (State) provides ACWA with numerical health risks and category of health risk information for contaminants with PHGs. This health risk information is appended to the ACWA guidelines. 2.0 California Drinking Water Regulatory Process California Health and Safety Code Section 116365 requires the State to develop a PHG for every contaminant with a primary drinking water standard or for any contaminant the State is proposing to regulate with a primary drinking water standard. A PHG is the level of a contaminant in drinking water that poses no significant health risk if consumed for a lifetime. The process of establishing a PHG is a risk assessment based strictly on human health considerations. PHGs are recommended targets and are not required to be met by any public water system. The State office designated to develop PHGs is the California Environmental Protection Agency's Office of Environmental Health Hazard Assessment (OEHHA). The PHG is then forwarded to the State Water Resources Control Board, Division of Drinking Water City of Tustin 1 2016 PHG Report (DDW) for use in revising or developing a Maximum Contaminant Level (MCL) in drinking water. The MCL is the highest level of a contaminant that is allowed in drinking water. California MCLs cannot be less stringent than federal MCLs and must be as close as is technically and economically feasible to the PHGs. DDW is required to take treatment technologies and cost of compliance into account when setting an MCL. Each MCL is reviewed at least once every five years. Total chromium and two radiological contaminants (gross alpha particle and gross beta particle) have MCLs but do not yet have designated PHGs. For these contaminants, the Maximum Contaminant Level Goal (MCLG), the federal U.S. Environmental Protection Agency (USEPA) equivalent of PHGs, is used in the PHG Report. N-nitrosodimethylamine (NDMA) has a PHG of 3 nanograms per liter and 1,2,3- trichloropropane (1,2,3 -TCP) has a PHG of 0.7 nanogram per liter but both are not regulated in drinking water with a primary drinking water standard. Bromodichloromethane, bromoform, and dichloroacetic acid are three disinfection byproducts that have federal MCLGs of 0 but are not individually regulated with primary drinking water standards. According to the ACWA guidance and instructions from DDW, these five chemicals do not have to be included in the PHG Report because they do not have an existing MCL. 3.0 Identification of Contaminants Section 116470(b)(1) of the Health and Safety Code requires public water systems serving more than 10,000 service connections to identify each contaminant detected in drinking water that exceeded the applicable PHG. Section 116470(f) requires the MCLG to be used for comparison if there is no applicable PHG. The City of Tustin (City) water system has approximately 13,934 service connections. The following constituents were detected at one or more locations within the drinking water system at levels that exceeded the applicable PHGs or MCLGs: • Arsenic — naturally -occurring in the surface water purchased from the Metropolitan Water District of Southern California (MWDSC) • Coliform Bacteria, Total — naturally -occurring in the environment but can also be an indicator of the presence of other pathogenic organisms originating from sewage, livestock or other wildlife. • Copper — corrosion of residential plumbing • Gross alpha particle activity (gross alpha) — naturally -occurring in the surface water purchased from MWDSC • Gross beta particle activity (gross beta) — naturally -occurring in the surface water purchased from MWDSC; not required to be tested in groundwater • Lead — corrosion of residential plumbing • Uranium — naturally -occurring in the local groundwater and surface water purchased from MWDSC. City of Tustin 2 2016 PHG Report The accompanying chart shows the applicable PHG or MCLG and MCL or Action Level (AL) for each contaminant identified above. The chart includes the maximum, minimum, and average concentrations of each contaminant in drinking water supplied by the City in calendar years 2013 through 2015. Copper and lead are regulated by ALs, not MCLs, and are tested from samples collected at selected customers' indoor faucets or taps. The AL is the concentration of copper or lead, which if exceeded in more than 10 percent of the tap samples, triggers treatment or other requirements that a water system must follow. The chart shows the 90th percentile concentration of copper and lead observed during the at -the -tap sampling. 4.0 Numerical Public Health Risks Section 116470(b)(2) of the Health and Safety Code requires disclosure of the numerical public health risk, determined by OEHHA, associated with the MCLs, ALS, PHGs and MCLGs. Available numerical health risks developed by OEHHA for the contaminants identified above are shown on the accompany chart. Only numerical risks associated with cancer-causing chemicals have been quantified by OEHHA. Arsenic — OEHHA has determined that the theoretical health risk associated with the PHG is 1 excess case of cancer in a million people and the risk associated with the MCL is 2.5 excess cases of cancer in 1,000 people exposed over a 70 -year lifetime. Coliform Bacteria, Total — USEPA has determined that the health risk associated with the MCLG is 0. Copper — OEHHA has not established a numerical health risk for copper because PHGs for non -carcinogenic chemicals in drinking water are set at a concentration at which no known or anticipated adverse health risks will occur, with an adequate margin of safety. Gross Alpha — USEPA has determined that the theoretical health risk associated with the MCLG is 0 and the risk associated with the MCL is 1 excess case of cancer in 1,000 people over a lifetime exposure. Gross Beta — USEPA has determined that the health risk associated with the MCLG is 0 and the risk associated with the MCL is 2 excess cases of cancer in 1,000 people over a lifetime exposure. Lead — OEHHA has determined that the theoretical health risk associated with the PHG is less than 1 excess case of cancer in a million people and the risk associated with the AL is 2 excess cases of cancer in a million people exposed over a 70 -year lifetime. Uranium — OEHHA has determined that the theoretical health risk associated with the PHG is 1 excess case of cancer in a million people and the risk associated with the MCL is 5 excess cases of cancer in 100,000 people exposed over a 70 -year lifetime. City of Tustin 3 2016 PHG Report 5.0 Identification of Risk Categories Section 116470(b)(3) of the Health and Safety Code requires identification of the category of risk to public health associated with exposure to the contaminant in drinking water, including a brief, plainly worded description of those terms. The risk categories and definitions for the contaminants identified above are shown on the accompanying chart. 6.0 Description of Best Available Technology Section 116470(b)(4) of the Health and Safety Code requires a description of the BAT, if any is available on a commercial basis, to remove or reduce the concentrations of the contaminants identified above. The BATs are shown on the accompanying chart. 7.0 Costs of Using Best Available Technologies and Intended Actions Section 116470(b)(5) of the Health and Safety Code requires an estimate of the aggregate cost and cost per customer of utilizing the BATs identified to reduce the concentration of a contaminant to a level at or below the PHG or MCLG. In addition, Section 116470(b)(6) requires a brief description of any actions the water purveyor intends to take to reduce the concentration of the contaminant and the basis for that decision. The City operates two existing treatment facilities (Main Street Treatment Plant and 17th Street Desalter) that treat nitrate and perchlorate in groundwater from five wells, using ion exchange and reverse osmosis. Arsenic — The BATs for removal of arsenic in water for large water systems are: activated alumina, coagulation/filtration, electrodialysis, ion exchange, lime softening, oxidation/filtration, and reverse osmosis. Arsenic was detected above the PHG in the surface water purchased from MWDSC. The City is in compliance with the MCL for arsenic. The estimated cost to reduce arsenic levels in the MWDSC surface water to below the PHG of 0.004 microgram per liter (Ng/1) using ion exchange was calculated. Because the DDW detection limit for purposes of reporting (DLR) for arsenic is 2 pg/l, treating arsenic to below the PHG level means treating arsenic to below the DLR of 2 pg/l. There are numerous factors that may influence the actual cost of reducing arsenic levels to the PHG. Achieving the water quality goal for arsenic could be approximately $2,100,000 per year, or $151 per household per year. Coliform Bacteria, Total — The BAT for removal of coliform bacteria in drinking water has been determined by USEPA to be disinfection. The City already disinfects all water served to the public. Chlorine or chloramines is used to disinfect the water because it is an effective disinfectant and residual concentrations can be maintained to guard against biological contamination in the water distribution system. City of Tustin 4 2016 PHG Report Coliform bacteria are indicator organisms that are ubiquitous in nature. They are a useful tool because of the ease in monitoring and analysis. The City collects weekly samples for total coliforms at various locations in the distribution. If coliform bacteria are detected in the drinking water sample, it indicates a potential problem that needs to be investigated and followed up with additional sampling. It is not unusual for a system to have an occasional positive sample. Although USEPA set the MCLG for total coliforms at 0 percent positive, there is no commercially available technology that will guarantee 0 percent positive every single month; therefore, the cost of achieving the PHG cannot be estimated. The City will continue several programs that are in place to prevent contamination of the water supply with microorganisms. These include: • Disinfection using chlorine or chloramines and maintenance of a chlorine residual at every point in the distribution system • Monitoring throughout the distribution system to verify the absence of total coliforms and the presence of a protective chlorine residual • Flushing program in which water pipelines known to have little use are flushed to remove stagnant water and bring in fresh water with residual disinfectant • Cross -connection control program that prevents the accidental entry of non - disinfected water into the drinking water system. Copper — USEPA has determined the BAT to reduce copper in drinking water to be corrosion control optimization. This method is capable of bringing a water system into compliance with the AL of copper at 1,300 pg/I. The City water system is already in compliance with the copper AL, meets all State and federal requirements, and is therefore deemed by DDW to have optimized corrosion control. Further corrosion control optimization would be incapable of achieving the PHG; therefore, the cost of reducing copper to the PHG level cannot be estimated. The principal reason for this is that the largest source of copper in tap water is the pipe and fixtures in the customer's own household plumbing. Copper has not been detected in the City's source waters. Factors that increase the amount of copper in the water include: • Household faucets or fittings made of brass; • Copper plumbing materials; • Homes less than 5 years old or constructed before 1980; • Water supplied to the home is naturally soft or corrosive; or • Water often sits in the household plumbing for several hours. The City collected extensive lead and copper tap samples in 2015. The copper levels in all of the most recent samples were below the AL. The City will continue to monitor the water quality parameters that relate to corrosivity, such as pH, hardness, alkalinity and total dissolved solids, and will take action if necessary to maintain the water system in an optimized corrosion control condition. City of Tustin 5 2016 PHG Report Gross Alpha, Gross Beta, and Uranium — The only BAT for the removal of gross alpha in water for large water systems is reverse osmosis, which can also remove gross beta, and uranium, if detected. Gross alpha was detected above the MCLG in the surface water purchased from MWDSC. Gross beta was detected above the MCLG in the surface water purchased from MWDSC. Uranium was detected above the PHG in the local groundwater (six of the City's groundwater wells — Columbus Tustin, Main Street No. 4, Prospect, Tustin Avenue, Vandenberg, and Walnut) and surface water purchased from MWDSC. The cost of providing treatment using reverse osmosis to reduce gross alpha levels in the MWDSC surface water to the MCLG of 0 picoCurie per liter (pCi/1) (and consequently gross beta in the MWDSC surface water below the MCLG; and uranium in the local groundwater and MWDSC surface water below the PHG) was calculated. Because the DLR for gross alpha is 3 pCi/I, treating gross alpha to 0 pCi/I means treating it to below the DLR of 3 pCi/l. Achieving the water quality goal for gross alpha could range from $2,030,000 to $17,300,000 per year, or between $146 and $1,240 per household per year. Lead — USEPA has determined the BAT to reduce lead in drinking water to be corrosion control optimization. This method is capable of bringing a water system into compliance with the AL of lead at 15 pg/I. The City water system is already in compliance with the lead AL, meets all State and federal requirements, and is therefore deemed by DDW to have optimized corrosion control. Further corrosion control optimization would be incapable of achieving the PHG; therefore, the cost of reducing lead to the PHG level cannot be estimated. The principal reason for this is that the largest source of lead in tap water is the pipe and fixtures in the customer's own household plumbing. Lead has not been detected in the City's source waters. Factors that increase the amount of lead in the water include: • Household faucets or fittings made of brass; • Lead plumbing materials; • Homes less than five years old or constructed before 1980; • Water supplied to the home is naturally soft or corrosive; or • Water often sits in the household plumbing for several hours. The City collected extensive lead and copper tap samples in 2015. The lead levels in over 90 percent of the most recent samples were below the AL. The City will continue to monitor the water quality parameters that relate to corrosivity, such as pH, hardness, alkalinity and total dissolved solids, and will take action if necessary to maintain the water system in an optimized corrosion control condition. For additional information, please contact Mr. Art Valenzuela at (714) 573-3382, or write to the City of Tustin Water Services, 300 Centennial Way, Tustin, California 90780. City of Tustin 6 2016 PHG Report 2016 PUBLIC HEALTH GOAL REPORT CITY OF TUSTIN PARAMETER — - aNITS OF PHG OR MCL OR DLR CONCENTRATION — GROUNDWATER SURFACE WATER CATEGORY OF CANCERRISK AT PHO CANCER- RISK BEST AVAILABLE AGGREGATE COST CO3T Pt:K HOUSEHOLD MEASUREMENT (MCLG)' (AL) RISK OR MCLS AT MCL TECHNOLOGIES PER YEAR PER YEAR VALUE RANGE VALUE RANGE MICROBIOLOGICAL Total Coliform Bacteria (a) % samples positive (0) 5 NA 2.8 NA NA NA NA NA NA D (b) (b) INORGANIC CHEMICALS Arsenic Ng/I 0.004 10 2 ND ND ND ND - 2.3 C 1 x 10$ 2.5 x 10.3 AA,C/F,E,IE,LS,O/F,RO $2,100,000 (c) $151 (c) Copper (d) pg/l 300 (1300) 50 380 NA NA NA G NA NA CC (b) (b) Lead (d) pg/l 0.2 (15) 5 7 NA NA NA C, CV, N < 1 x 10$ 2 x 10$ CC (b) (b) RADIOLOGICAL Gross Alpha Particle Activity pCi/I (0) 15 3 ND ND ND ND -4 C 0 1 x 101 RO $2,030,000 - $17,300,000 (e) $146 - $1,240 (e) Gross Beta Particle Activity pCi/I (0) 50 4 NR NR ND ND -6 C 0 2 x 10' IE, RO — -- Uranium pCi/I 0.43 20 1 1.1 ND - 2.7 2.7 2-3 C 1 x 10-6 5 x 1e IE, C/F, LS, RO -- -- ALL CONTAMINANTS — — — -- — -- -- — -- -- -- RO $2,030,000 - $17,300,000 ( $146 - $1,240 " MCI -Gs are shown in parentheses. MCI -Gs are provided only when no applicable PHG exists. RISK CATEGORIES C (Carcinogen) = A substance that is capable of producing cancer. CV (Cardiovascular Toxicity) = A substance that may cause high blood pressure. G (Gastrointestinal Effects) = A substance that may adversely affect the gastrointestinal tract after short-term exposure. N (Developmental Neurotoxicity) = A substance that may cause neurobehavioral effects in children. NOTES AL = Action Level PHG = Public Health Goal MCL = Maximum Contaminant Level MCLG = Maximum Contaminant Level Goal NA = Not Appplicable or Available ND = Not Detected NR = Not Required ug/I = micrograms per liter or parts per billion pCi/I = picoCuries per liter DLR = Detection Limit for Purposes of Reporting TREATMENT/CONTROL TECHNOLOGIES AA = Activated Aluminum CC = Corrosion Control C/F = Coagulation/Filtration D = Disinfection E = Electrodialysis IE = Ion Exchange LS = Lime Softening O/F = Oxidation/Filtration RO = Reverse Osmosis (a) The table shows highest monthly percentage of positive samples as the detected value. Samples were collected in the distribution system. (b) Cost could not be estimated (c) Estimated cost to remove arsenic using IE. (d) An action level has been established for copper and lead. The action level is exceeded if the 90th percentile concentration in samples collected throughout the distribution system is higher than the action level. The table shows the 90th percentile concentration. (e) Estimated cost to remove gross alpha particle activity using RO, which also removes gross beta particle activity and uranium. (f) Assuming treating the entire production by RO, which can remove all contaminants listed in the above table to below the detectable levels, except for total coliform, copper, and lead, which can be detected anywhere in the distribution system. J.12471U477-002 Tuan 2018 PHm1 rutin—pNwbie_201erix ATTACHMENT 2 CONSUMER CONFIDENCE REPORTS 2014, 2015, 2016 Citta of TivsTj4N wAter Divisioll 3 3 t u +. O o y O s v� ui o u £ u M C- ' N c a r 7 � � tn Q +� a. O r tea+ N n• 47 Ln i E bq 3 s L 'O N 3 c v na s E o y mLZ ,° .� mJ U ro O m o wC ++ ❑ CL a- p V!O� SG C s .a 7 a �^ au O Q' 0, c.W E L N !O � c •p OtA i.+ u f 0 N m to w �'a ' 'Oc aci L, © D c O y ° a O '- c wp a =u -0 -0Eca a2 c o - to z s+ L Rpm m al O �rGi;'G E c W = + O O y„i a� C30 E r.U w 8-0 E s a+ ziLn C N 17p � •a © c' c '� 'sw, c •� " T Q c O `° s O JN 3 ri oo m pc 5 �p a, xl- P ur l�0y 22 ui vi a :cc o do l 12 (U W A E� �. K a © 6 N 4 p] Q a M �7 qu C w ,u iv ja 25 c E m The Quality of Your Water is Our Primary Concern Sources of Supply Orange County's water supplies are a blend of groundwater provided by OCWD and water imported from Northern California and the Colorado River by the Municipal Water District of Orange County (MWDOC) via MWDSC. Groundwater comes from a natural underground aquifer that is replenished with water from the Santa Ana River, local rainfall and imported water. The groundwater basin is 350 square miles a beneath north and central Orange County from Irvini the Los Angeles County border and from Yorba Lind to the Pacific Ocean. More than 20 cities and retail water districts draw from the basin to provide water to homes and businesses, Orange County's Water Future For years, Orange County has enjoyed an abundant, seemingly endless supply of high-quality water. However, as water demand continues to increase statewide, we must be even more conscien tious about our water supply and maximize the effici use of this precious natural resource. OCWD and MWDOC work cooperatively to evaivaie new and innovative water management and supply development programs, including water reuse and recycling, we expansion, recharge facility construction, ocean i brackish water desalination, surface storage and wate use efficiency programs. These efforts are helpingto enhance long-term countywide water reliability and water quality. A healthy water future for Orange County rests on finding and developing new water supplies, as well as protecting and improving the quality of the water that we have today, Your local and regional water agencies are committed to making the necessary Investments today In new water manage- ment projects to ensure an abundant and high-quality water supply for our future. In order to ensure that tap water is safe to drink, USEPA and the CDPH prescribe regulations that limit the amount of certain contaminants in water provided by public water systems. CDPH regulations also establish limits for contaminants in bottled water that must provide the same protection for public health. Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. ence of contaminants does not necessarily indicate water poses a health risk. More information about ntaminants and potential health effects can be obtained by calling the USEPA's Safe Drinking Water Hotline at (800) 426-4791. Immuno -Compromised People Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno -compromised people, such as those with cancer who are undergoing chemo- therapy, persons who have had organ transplants, ople with HIV/AIDS or other immune system dere, some elderly persons and infants can be rly at risk from infections. These people should seek advice about drinking water from their health care providers, " USEPA and the federal Centers for Disease Control elines on appropriate means to lessen the risk of lection by Cryptosporidium and other microbial contaminants are available from USEPA's Safe Drinking Water hotline at (800) 426-4791 between 10 a.m, and 4 p.m. Eastern Time (7 a.m, to 1 p.m, in California). Basic Information About Drinking Water Contaminants The sources of drinking water (both tap water and bottled water) Include rivers, lakes, streams, ponds, reservoir#, springs and wells, As water travels over the surface of land or through the layers of the ground It dissolves naturally occurring minerals and, In some cases, radioactive material, and can pick up substances resulting from the presence of animal and 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, Radioactive contaminants, which can be naturally occurring or be the result of all and gas production or mining activities, • Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban storm runoff, Industrial or domestic wastewater discharges, all and gas production, mining and farming, Peaticidea 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 aro by-products of industrial pmeassas and petroleum production, and can also cam@ Pram gaaalin@ stations, urban stormwater runoff, agricultural application and septic systems. Conservation Tips for Inside Your Home Wash only full loads of laundry and dishes Saves up to 50 gallons per week Fix household leaks promptly Savo up to 20 gallons per day Spend only 5 minutes In the shower Saves up to 8 gallon each time - Turn off the water while you brush your teeth Sava up to 2.S gallons per minute Buy water -saying devices like high-efficlency tollets and clothes washers, You'll save many gallons of water per day, and many of them are . eligible for rebates. To learn more, check on r www,boweterwlso.com, Talk to your family and friends about saving water, If everyone does a little, we all benefit a lot, Qucstions about your water? Contract us for answers. For Information about this report, or your water quality in general, please contact Joe Lozano at (714) b73=3178, The Tustin City Council mosts the first and third Tuesdays of every month at 7;00 pm In the City Council Chambers, 300 Centennial Way, Tustin, California, Please foal free to participate In these meetings, For more information about the health effects of the listed contaminants In the following tables, call the USEPA hotline at (800) 436=4791, Important Information the EPA Would Like You to Know Issues in Water Quality that Could Af tea Your Health Nitrate Advisory At times, nitrate in your tap water may have exceed- ed one-half the MCL, but it was never greater than the MCL of 45 milligrams per liter (mg/L). Nitrate in your drinking water in 2013 ranged from 12 to 24 mg/L. The following advisory is issued because in 2013 we recorded nitrate measurements in the drinking water supply which exceeded one-half the nitrate MCL. Nitrate in drinking water at levels above 45 mg/L is a health risk for infants of less than six months of age. Such nitrate levels in drinking water can interfere with the capacity of the infant's blood to carry oxygen, resulting in a serious illness; symptoms include shortness of breath and blueness of the skin. Nitrate levels above 45 mg/L may also affect the ability of the blood to carry oxygen in other individuals, such as pregnant women and those with certain specific enzyme deficiencies. If you are caring for an infant, or you are pregnant, you should ask advice from your health care provider. About Lead in Tap Water 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. The City 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 a for drinking or cooking. What are Water Quality Standards? Drinking water standards established by USEPA and CDPH set Ilmlts for substancte that may offed consumer health or aesthetic qualities of drinking water. The chart in this report shows the following typos of water quality standards; Maximum Contaminant Leval (MCD: The highest level of a contaminant that Is allowed in drinking water. Primary MCLS are set as close to the PHGs (or MCLGs) as is economically and technologically feasible, • Maximum Itaaiduai Disinfodant Last (MRDD: The highest level of a disinfectant allowed In drinking water, There Is convincing evidence that addition of a disinfectant Is necessary for control of microblil contaminants, • Secondary MCLS: Set to protect the odor, taste, and appearance of drinking water. Primary Drinking Water standard: MCLS for contaminants that affect health along with their monitoring and reporting requiromenis and water treatment requirements. • Regulatory Action Level (AL): The concentration of a contaminant, which, R exceeded, triggers treatment or other requirements that a water system must follow, How are Contaminants Measured? Water Is sampled and tested throughout the year, Contaminants are measured Im • parts per million (ppm) or mllllgram per liter (mg/L) • parts par billion (ppb) or micrograms per liter (Ng/L) • parts per trillion (pot) or nanograms per liter (ng/L) What it a Water Quality Goal? In addition to mandetory water quality standards, USFPA and C®PH have asst voluntary water quality goat for some €ontaml- mints, Water quality rate aro often sat it such low lavels that they are not s€hlovabla In practice end art not dlroctly meaturible, Nevortholess, these goals provide uistul guidepoiti and direction lot water manApRitrit practices. The €hart in lhii report In€ludet three types of wafer quality goals; • Maximum Contaminant Level Goal (MCLG): The level of A €onlemiRaRl in drinksn� water below which them ii no known or expt€led rlik to heslthi MCLPi are sat by USFPA r Maximum Roxldual Dislnfodant Levol Goal (MRDtG): The level of a OfAlmit wster dlalnfa€tanf below whi€h thorn Is no known or axpe€ttd risk to health, MNDL9s do not reflect the bonelitt of the wit of diiintodantt to control mlefoblai atRtamlRlRti• • Public Health Goal (PHO); The Itvol of a contaminant In drinklrtif water below whi€h there it no known or txpt€tW risk to health, PH04 are set by the Colifaimio Srwironmontal Protection Alon€y. 01 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 (800) 426-4791, or on the web at httpV/water.epa.gov/drink/info/lead/index.cfm. Drinking Water Fluoridation Fluoride has been added to U.S. drinking water supplies since 1945. Of the 50 largest cities in the U.S., 43 fluoridate their drinking water. In December 2007, MWDSC joined a majority of the nation's public water suppliers in adding fluoride to drinking water in order to prevent tooth decay. In line with recommendations from the CDPH, as well as the U.S. Centers for Disease Control and Prevention, MWDSC adjusted the natural fluoride level in imported treated water from the Colorado River and State Project water to the optimal range for dental health of 0.7 to 1.3 parts per million. Our local water is not supplemented with fluoride. Fluoride levels in drinking water are limited under California state regulations at a maximum dosage of 2 parts per million. There are many places to go for additional informa- tion about the fluoridation of drinking water: Now Radiation (pCIN is (0) NO 3 NO -- 3 No Erosion of Non[Depaiits 80waftiociNl) s0---- (Oj----- NA NO ND -4 No Decay ofMan-medeorNaturalDeposhs Uranium 20 0.43 - 1,5 _-- 2 - ND- .7 No Erosioe orNatural siu inorganic Chemicals -Tested in 2013 Odor (thnsholda&nwrlar) itari i i nihil I' nla NO 480 3 Aluminum (ppm) 1_ _ 016 _ _ NO 0.16 _ _ ND -0,23 No hN6naM Protan Residua, Natural Deposlts Anardc ippb) 10 o 004 ND- 2 ND -2- No Erasion o(Nitural Deposits lariun(pont) 1 2 40(0 ND ND 01 No Eroilano(Neturall�posits Fluaida(pprm)tnamieninGnd TContrMliipe0,7-1,2ppm V - 0,80- 0.7-1 No EMAn"611NiturelOsposlts s' 00mal Lrnl 01 ppm 40f NO NT) -0:y No EmsianofNaturoifJepasib" fluoride [ppm) I 1 0,19 Nil 019 b f3 No _ Eraslort of NaNril Di sTls � Nitiah�ppmaiVt)d 49 49 Mpiybd0iwm, otsitppb) .- NotRellulaied No --No' i�rdli�i%�ipdchnks __ — - NidaM+NItr is On a N) 10 10 3.9 0,4 2 {- ss No kMl* optic links Aluminum (ppb) 200" 600 NO 160 NO- 230 No keaknent Prams Residue, Natural Deposla Chloride (pPml iv 4 19 of 040 i0 No Erosion ofNetureT eposit; Cda(COW Units) Is, N+ NO 1 ND -_t -- No ErosiOnofNauadDapmlg Odor (thnsholda&nwrlar) itari i i nihil I' nla NO 480 3 ND=3 No- New nl�bcn�inl Ot h�iik 14i'veli 3pbdk Cat i) 1,8M, No so 190 1`10-9-16 No 3ub4lanas l ah t l awrti`N�nt in mill wo (ppm) Soo* No 110 190 U-200 No Erosion ai Natural Doposh foist hi" Wiido (M) 1,000, nit 490 440 400-640 No (msion of Natural Deposits to witirW-i) s' No 40f NO NT) -0:y No EmsianofNaturoifJepasib" unregulated Contaminants Requiring Monitoring - Tested In 2013 NatRtgu. n!a iS 87 1,41 -OWN (ppb) NL -1 we 01 NO ND -01 Ns Mulift Waste Disdlar p Ailulinily, total (ppm a CoCOij Not Regulated Ns 160 110 93 -1#0--- 11111 Erasion of Natural bopmlts loran (ppm) N(= i Na 40:1 014 IND 014 No _ Erosion of Natural Dopotlis Caidum *1 Not R%uMtad nla 14 60 $0 = 94 om lob of Natural Deposits Chioap (pob) N( =100 rah so 61 ND -130 Na 4mk dminlww Gra at hdushll Narcan Chromium, Mosavaknt (0) Not Ragu4tod 001 0181 0.01 NO = 0,A No (radon of Notuntl Doleeitt Indodif Dnd erpe Cludmium,Totaf(ppb) Not4gulatao Na 011 0:11 ND=Os Na epwon a Wool DiJaosio;ln odelOieherpt 111rdne410111(ppm as CACW Nal Ilegulaitd rah 740 ISO 10-1120 nit Eroion of Newel D4pas1is Magnssfumltlo- NatRtgu. n!a iS 87 111-8i N1 EroiionOfNltura1111"lti Mpiybd0iwm, otsitppb) .- NotRellulaied No 10 4,7 4.4-7D Na FradonofNotttslD"Ib _ ___ - pH(pH*U) NetRipul4tid No 1 1,1 7l -di N1 Amy, lens - p wulum(WN Not wit* N1 17 417 1.1=4.4 0,11 Etolion 0 NitwitkPosh k li m (ppm) Not RRttgguulatad 01 70 14 61=17 Na Fro* of NAM 00 S it 11VOWL {ppb) Nat�ulat44 nNa 140 410 A)0 -1,100 Ma Fioil� of Nlturl(0apoal Tmil Organ(€ Ot6an (ppmj Not Regulated TT c03 7;§ ND =17 Ali 40 or lathing Item NoNfif Dspolo *Am, Total N( - SO N1 414 7.1 1 S = 7V I No Fit* of Nltvrt100pea1h �p = @M+t pirbdllo into -gam,-ptrm4UaA, pl = p4% 4i0N IKK = ik10uf1t4 atf 140f, NN = nta11tlemtt4t 1u aN41 uma; pmMhan - m4F* p f ffl. w4iQfi Nil bt�NO /irt(k6 NL li itis Min dtttiiitn Ilrt li for msoftm = nal naeuusd M =_ fM =Nor nn Ltvtli e - rhfayt the fadtmt rtoonk gMel = (tn~ 40; 'Cant4maxmt 11011011) - MFS = faNrsfM1 ivihi iltaiM Oto; Ne = not applli�lti R _ kteimtm ttMNast luta iN a stay alar4 iuoelMgr x 4 mts4wt of Me AsudMtai of Mt vraist os inNtetien Ai Met mato, loot o(wAi4h mem indv4i ml€raerpanxma law tufMNx1 n Mrtmp@hMRs Ut1lt4 v4ikn w1 redr ei ef�tiixlden r4yalMn u (a11M a xe41mrn1 �nnl@vt' Irf1 A 104101*141 us 114 ft AOO MW I w rsa,r+ the revel of WIAmimmit m 4005 w410 11141 elft �Bn€uR and famtnmai impeiNYle fa mtliuM U.S. Centers for Disease Control and Prevention 1(800) 232-4636 • www.cdc.gov/fluoridation/ California Department of Public Health www.cdph.ca.gov/certlic/drinkingwater/ Pages/Fluoridation.aspx American Water Works Association www.awwa.org For more information about MWDSC's fluoridation program, please call Edgar G. Dymally at (213) 217-5709 or email him at edymally@mwdh2o.com. Entrained Air If your tap water has a slightly "milky" appearance, you're probably experiencing an interesting but harmless phenomenon known as "entrained air." The milky color in the water caused by tiny air bubbles is harmless and is related to the operation of City wells. The air is dissolved under pressure in the groundwater, much like carbon dioxide in a bottle of soda. If your tap water is milky - colored and you want to confirm you are experiencing entrained air, rinse out a clear glass twice and then fill it with cold tap water. After a few moments, the water should begin to clear from the bottom of the glass to the top as the bubbles rise to the surface. If the water does not clear, please contact us. Want Additional Information? There's a wealth of Information on the Internet about Drinking Water Quality and water issues in general. A good place to begin your own research Is the City of Tustin website: www.TUstinCA.org. In addition to extensive information about your local water and the support and services we offer, you'll find links for many other local, statewide, and national resources, Conservation Tips for Outside Your Hor Water your lawn 1 to 2 days a week instead of 5 days a we Saves up to 840 gallons per week Check your sprinkler system for leaks, overspray and broken sprin and repair promptly Saves up to 500 gallons per month Install a smart sprinkler controller that adjusts watering based on weather, soil type, amount of shade and plant ty Saves up to 40 gallons per day Use a broom instead of a hose to clean driveways and sidewa Saves up to 150 gallons each time Water your plants in the early morning or evening to reduce evaporation and ineffective watering due to wind Saves up to 25 gallons each time Additional water saving steps and devices are also available, and some of these are eligible for substantial rebates, Consider replaci your lawn with drought tolerant plants, synthetic turf, or permeabl hardscape. Or add rotating sprinkler nozzles, a weather -based controller, or a drip line to enhance your automated irrigation system. And mulch. Hundreds of gallons a year can be saved by simply using organic mulch around plants to reduce evaporation. Further conservation ideas, and complete rebate information, are available on the web at www,bewaterwise.com. Source Water Assessments Imported (MWDSC:) Water Assessment Every five years, MWDSC is required by CDPH to examine possible sc _ contamination In its State Water Project and Colorado River source waters. In 2012, MWDSC submitted to CDPH its updated Watershed Sanitary Surveys for the Colorado River and State Water Project, which include suggestions for how to better protect these source waters, Both source waters are exposed to stormwater runoff, recreational activities, wastewater discharges, wildlife, fires, and other watershed -related factors that could affect water quality, Water from the Colorado River is considered to be most vulnerable to contamination from recreation, urban/stormwater runoff, increasing urbanization In the watershed, and wastewater, Water supplies from Northern California's State Water Project are most vulnerable to contamination from Turbidity (NIU) 54 0.10 0.1--0,12 No Erasion of Natural 0apashs F"pM locadons In the dkni6utlai ryry�sum are Wted rwd hw [Dial Who lo"Ifeinn wel hohucok eddy wwnlr beadoma in tesnd mont* 6x td ®der end Wryldltr. Coley and a& were not deuced in 20IJ Afllal a Ma bmm� Aaddwl ONMlapam foal; MADLO i MielM m A4NdWl ®41 (eE{anf IaYQI Goal; (nU = p dl pl tlpnQh € (U IIr W9R NO - no1 Mtacud •Cootemina t k rfplmw b2 a wwnGry Imolaml in maintain wolivilt gwlliln (iestti edor, tow, ptabem No moro than S% of the monthp semploo may be pee* fa lolal €ll.Iwrm batwila. The owurnnw of 1 t miiiWa fetal w iform poson samolos, one of Whitt Coll facai wliformlar too, wnsthUw an atala MQ v WaOors, Every three furan, t! !asidenws are tesrad for wad and to er at ttre to@• the Asci ra€ain set of sample were eelkttad m t@l i• lead was d2taead In MAa homes; Dna taaeded the q0l 4slion W* copper was mKied la 10 homes^ Sana eats M 0w it�elatvry Milli wo, A ree�a on Won wtd n d e eoAeaAbatwn of a €eAtamN;anl whop trlepore paatMi or ether regelraAloms ties a weer Wm mint W@w 010firfum,HsA4va[pfd(_ppb) Iva 1110) o.ost N11a.11 Mill Nki TOO[ JPO) Na fYA 44 41mU 1611 ltrenilam,Tst4f(p�i els 1174 170 114t,ioo loll V4n4dium,TPtal jot?) iC M l0 lil -1,1 1o11 urban/stormwater runoff, wildlife, agriculture, recreation, and wastewater, USEPA also requires MWDSC to complete one Source Water Assessment (SWA) that utilizes Information collected In the watershed sanitary surveys. MWDSC completed its SWA In December 2002, The SWA is used to evaluate the vulnerability of water sources to contamination and helps determine whether more protective measures are needed. A copy of the most recent summary of either Watarshed Sanitary Survey or the SWA can be obtained by calling MWDSC at (213) 217.6850. Groundwater Ass meat An assessment of the drinking water sources for the City was completed in December 2002. The ground- water sources are considered most vulnerable to the following activities not associated with detected contaminants; confirmed leaking underground storage tanks, dry cleaners, and gas stations, The groundwater sources are considered most vulnerable to the following activities associated with contaminants detected in the water supply( known contaminant plumes, historic agricultural activities and application of fertilizers, and sewer collection systems, A copy of the complete assessment is available at Department of Public Health Office of Drinking Water, Santa Ana District, 28 Civic Center Plaza, Room 325, Santa Ana, California 92701, You may request a summary of the assessment by contacting the City of Tustin Water Services at (714) 573=3178, O m Q A 0 u o o _ Z 0 CL V9 m ' W V1 J a In d q s 0 x I 4z10;1p Rt&isM r 16 21J ie �* i) , j V vWW9p y i{ ktNia iN AK iib -' � W e 19 �Ir vl gr rf- �' TKO SJ;zi 6J oh JIJ ai 7< Z � 0 �o N -N_ *j �8 of r�73�of V Sr UM -K io vcuUiiry Giry of Tustin Water Services a� s C C N 3 C 7 GO v s V, DOp C f0 E s u 3 0 Z" V O 1111w, 3 i4' I�� El F ro Ila r_= v 0 u� } C v Q w E The Quality of Your Water is Our Primary Concern Sources of Supply Orange County's water supplies are a blend of groundwater provided by OCWD and water imported from Northern California and the Colorado River by the Municipal Water District of Orange County (MWDOC) via MWDSC. Groundwater comes from a natural underground aquifer that is replenished with water from the Santa Ana River, local rainfall and imported water. The groundwater basin is 350 square miles and lies beneath north and central Orange County from Irvine to the Los Angeles County border and from Yorba Linda to the Pacific Ocean. More than 20 cities and retail water districts draw from the basin to provide water to homes and businesses. Orange County's Water Future For years, Orange County has enjoyed an abundant, seemingly endless supply of high-quality water. However, as water demand continues to increase statewide, we must be even more conscientious about our water supply and maximize the efficient use of this precious natural resource. OCWD and MWDOC work cooperatively to evaluate new and innovative water management and supply development programs, including water reuse and recycling, wetlands expansion, recharge facility construction, ocean and brackish water desalination, surface storage and water use efficiency programs, These efforts are helping to enhance long-term countywide water reliability and water quality. A healthy water future for Orange County rests on finding and developing new water supplies, as well as protecting and improving the quality of the water that we have today. Your local and regional water agencies are committed to making the necessary Investments today in new water management projects to ensure an abundant and high-quality water supply for our future, Basic Information About Drinldng Water Contaminants The sources of drinking water (both tap water and bottled water) include riven, lakes, streams, ponds, reservoirs, springs and wells. As water travels over the surface of land or through the layers of the ground It dissolves naturally occurring minerals and, In some cases, radioactive material, and can pick up substances resulting from the presence of animal and human activity, Contaminants that may be present in source water include: - Microbid contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations and wildlife, Radioactive contaminants, which can be naturally occurring or be the result of oil and gas production or mining activities Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban storm runoff, industrld or domestic wastowater diachorges, all and gas production, mining and farming. Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff and residential uses, Orgamic ehemleaf contaminants, including synthetic and volatile organic chemicals, which aro by-products of Industrial processes and petroleum production, and can also come from gasoline stations, urban stormwater runoff, agricultural application and septic systems. In order to ensure that tap water is safe to drink, USEPA and the DDW prescribe regulations that limit the amount of certain contaminants in water provided by public water systems. DDW regulations also establish limits for contaminants in bottled water that must provide the same protection for public health. 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. More information about contaminants and potential health effects can be obtained by calling the USEPA's Safe Drinking Water Hotline at (800) 426-4791. Immuno -Compromised People Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno- compromised people, such as those with cancer who are undergoing chemotherapy, persons who have had organ transplants, people with HIV/AIDS or other immune system disorders, some elderly persons and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. The USEPA and the federal Centers for Disease Control guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from USEPA's Safe Drinking Water hotline at (800) 426-4791 between 10 a.m. and 4 p.m. Eastern Time (7 a.m. to 1 p.m. In California). Conservation Tips for Inside Your Home Collect water used to wash fruits and vegetables Use It to water your houseplants Wash only full loads of laundry end dishes: Saws up to 50 gallons par week Plug the sink Instead of running water to rinse your razor Saves up to 840 gallons a month Buy water -saving devices Ilk@ high-efficlancy toilets and clothes washers, You'll save gallons of water per day, and many of these Items are eligible for rebates, To learn more, visit; www.omatersmart com, Talk to your family and friends about soving water, I everyone does a Nttla, we all benefit a lot. Questions about your water? Contact us for answers. For information about this report, or your water quality in #@moral, please contact Joe Lozano at (714) 573=3178, The Tustin City Council moots the first and third Tuesdays of every month at 7,00 pm In the City Council Chambers, 300 Centemnlel Way, Tustin, California, Please feel froe to participate In these mootin#s, For more information about the health effects of the listed contaminants In the following tables, call the USEPA hotline at (800) 436.4791, Important Information the EPA Would Like You to Know Issues in Water Quality that Could A& Your Health Drinking Water Fluoridation Fluoride has been added to U.S. drinking water supplies since 1945. Of the 50 largest cities in the U.S., 43 fluoridate their drinking water. in December 2007, MW DSC joined a majority of the nation's public water suppliers in adding fluoride to drinking water in order to prevent tooth decay. In line with recommendations from the DDW, as well as the U.S. Centers for Disease Control and Prevention, MW DSC adjusted the natural fluoride level in imported treated water from the Colorado River and State Project water to the optimal range for dental health of 0.7 to 1,3 parts per million. Our local water is not supplemented with fluoride. Fluoride levels in drinking water are limited under California state regulations at a maximum dosage of 2 parts per million. Additional information about the fluoridation of drinking water is available on these websites: U.S. Centers for Disease Control and Prevention 1(800) 232-4636 • www.cdc.gov/fluoridation/ State Water Resources Control Board, Division of Drinking Water www.waterboards,ca.gov/drinking_water/ I certlic/drinkingwater/Fluoridation.shtm l What are Water Quality Standards? Drinking water standards astabiished by USEPA and DDW set limits for substances that may affect consumer health or aesthetic qualities of drinking water. The chart in this report shows the following types of water quality standards; • Maximum Contaminant Leval (MCL); The highest level of a contaminant that Is allowed in drinking water, Primary MCLS ere sat as close to the PHGs (or MCLGs) as Is economically and technologically feasible. • Maximum Residual DislydectaM Level (MROL); The highest leaf of a disinfectant allowed in drinking water, There Is convincing evidence that additlon of a disinfectant Is necessary for control of microbial contaminants, • Secondary MCLS; Set to protect the odor, taste, and appearance of drinking water, • PrimaryDrinking Water Standard: MCLS for contaminants that affect health cion` with their monitoring and reporting requlrementi and water treatment requirements, • Regulatory Action level (AL): The concentration of a contaminant, which, R exceeded, triggers treatment or other requlromints that a water system must follow, How are Contaminants Measured? Water is sampled and tooted throughout the year. Contaminanto car€ masurad In; • ports per million (ppm) or milligrams per liter (mg/L) • porta per billion (ppb) or micrograms per liter (yg/L) • parts per trillion (ppt) or nonogrems per liter (ng/L) What Is a Water Quality Goal? in addition to mandatory water quality standards, U11PA and DDW have set voluntary water quallty goals for soma con4mv mints, Water qualitycall aro often sat it such low levels that they are not ochlevabfe In practice and aro not directly measurable. Novertholmo, thaaa Seek pmvlda umtul guidepo#tA and diractlon for water minapmeat practices. The chart in this report Ineiudes three typos of water quality goal#, • Maximum Contaminant Level Goal (MCLG); The level of a contam)mont In iffin,k �rgg Water below which th" i# me known of expected rl#k to haiku, MCLG# aro #it by 1,119PA, • Maximum Residual Disinfectant Level Goal (MRDLG); The (avol of a dfinkinill water dlilinfoctant below which there i# no known or expected risk to hoolth• M11I do not reflec! the benofit# of the use of di#Infeclenta to control miefebial €ontaminanti, • Public Health Gal (PHG); Tho level of a contaminant In dfinkimg witei below whlch thefe I# no known v expected Olt 1e health, PMGa are lot by the California tnvirommontal Protullon A/ancy. For more information about MWDSC's fluoridation program, please call Edgar G. Dymally at (213) 217-5709 or email him at edymally@mwdh2o.com. Nitrate Advisory At times, nitrate in your tap water may have exceed- ed one-half the MCL, but it was never greater than the MCL of 45 milligrams per liter (mg/L). Nitrate in your drinking water in 2014 ranged from non -detect to 33 mg/L. The following advisory is issued because in 2014 we recorded nitrate measurements in the drinking water supply which exceeded one-half the nitrate MCL. Nitrate in drinking water at levels above 45 mg/L is a health risk for infants of less than six months of age. Such nitrate levels in drinking water can interfere with the capacity of the infant's blood to carry oxygen, resulting in a serious illness; symptoms include shortness of breath and blueness of the skin. Nitrate levels above 45 mg/L may also affect the ability of the blood to carry oxygen in other individuals, such as pregnant women and those with certain specific enzyme deficiencies. If you are caring for an infant, or you are pregnant, you should ask advice from your health care provider. About Lead in Tap Water 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. The City 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 1s lo) NO ND ND74 No SO -10) NR 5 4-6 No 20 0,43 �) '. _ Np _ 3 .. No Aluminum (ppm) 1 016 NO 0,17 ND - 0.31 No Tnatrnent Process Residue, Natural Deposlh 08flum ) fluorlda} treatmentnfeteiT` 1 2 Control Aarpe 0,7 -'1.3-ppm 410 71R 0,11 64- NO 0.11 U 7-1 No Nd...Eros-ion Eroslon of Natural Da its of NaturaTbe�p-osl�ts Opdmal Leval 0.8 ppm FILM&(ppm) 2 l 0,18 Nil019-0.23 No trosionofNaNnl its Nhnte(ppm a�NO 45 a it N0� ND -33 No far�liii-I lc Tan NArm+Nhnte (ppm as N) 10 10 4 ND ND 43 No hr011teie, took Tinks Secondary Sanda€W-i►sted in 2014 Aluminum (ppb) _ 200' Silo ND 170 ND = 31D No Naimant Process Willut Natural Doposb Chloride (ppm 500' rale 100. 90 63 160 No Eroslori oNaf WINTDrpoalu Color (color units) 15• Na ND I Nd I No troslonofNaturalsifts Odor (ehrishokf ods€ aortal€) 3z nig ND 1 ND -1 _ _ No Natuialy octurt�ny nk irTahiliis Specific conductance (ymholcn! I'limr rata 960 990 710 1,400 No Substances trot Form s in water3uifate ippml 300 rr i�6 23� 1i9-340 No troskuiclAetunitti_ _ TotalDlaobed !oil& Ippm) 1A00, Na so 030 400-910 No Emilai of Natural Deposits Turbldity(NTU) s• Na 4f No ND=08 No Erosion of Natural Deposits Un ted Chtmicalt-11oitsed M 2013 and 2014 1,4-Dic ars (ppb) N1= i No 0,t ND ND 0.2 Na Industrial waste Dlscharga_ Nkalmny, total ("M oe C#COJ) Nat Anuliaw Na 180 lid 120 - 260 nil Froslan of Notural 6aoslts i®ran NL�1 rah c0<1 O.T NO -0,111 nla Er>nanoiAaiural>feposiu lcium(ppm) hklawte( Not Aagulood Na 95 72 So - i s0 Na Ereslon of Natural De td 6J Naaaveknt NL=000 rah s9 53 ND -Ito nil Ftpndsttet 44aiNNkeoaGMBatmlEroauts chwmlum tppb)" 10 0.02 613 0.01 NO -04 Na Frosion of Now Depo a )nduoll 6itdteipa Chrmn um, To1ei(pp ", s0 000) c0,2 a 0,2 ND= 0,5 Ila Enimn of Natural kmiu; industrial Alsdnrpe klerdness, total_ 00 As Cleo)) Not Rapid W nit 970 990 166-5110 rtia Wm of Natu€a 0j*ts MAq*wm loam) Not Roploted rail 21 2.4 0 t = 49 nig Entelon afNatural Depe3lti MeIsidro,total (ppk) NeiAeputited nit 10 417 44-20 nil EroaionolNitufaiNpoilh pN N unlM) Net Reputated No 7.9 6.1 73 61 nig Acfilitp Hydrptm lona potaedum (_pork_ Not Ittriated Nr 11 4,6 1.1-4,0 Na [imlon o hotel OAapiiw Sodium ()fpm) Nat 9*1ated Ni so 94 51=99 Na ftoef(n of Natutil Dopo4iti lnonaum, Totalb) Not 4platod No 146 910 41.0=1,100 nio Erosion of Noturol Dopoiib Total Orpenic Caren (ppm) Not Aepul W TT Il) a ND 411 Na Ruilo w leadrinp from Natural Depoill4 lhnedtum, ficial C 1 NL -- 50 r A 4.4 7,21 15 =1.7 No FmOon of NANIA! 9oismi1ls Olin, pia =Poll = p€at urr€i w 44F, NFU = wlRi oi€ nfrAldiry unm; t wom = ro l4 ajaliard mt t h Il:s INen Ins dwa€den hmN far IapsmirN 6u in, We 4� - rxlmarnhm s�er € 0mater. = W"Ri€ale, V Jk = Ma+lm. (W.W LOW (tali) Mit 6 PH = CalilgnU P641W NsaMh 000; Nl = NetH €#Hun lrre4 fl = AeArRem W11440, Cunaemmantii tHl��ulewel kf_ a!€cw* •Ha•Ar1bRt @NiMteM A . YaM iRt ZIA PP1 kat wii Rat claw* WAR R tki aa4OR limp kir pyrlim" M 7 d 1 peak 1,10011M m". IWn Wei G W pf dM kik Hqukl menitadna, rrl leMwMli uMtliwlmanMCtetlA�net� rnl **lip#MRIw wpm offawfyatl00 1.) ficwtalle of ani* Iwo 0iAn 0.1 NTU g§t6 100% No, 140411-0 1�{kMi n a Ma•av + el A+i �euAi M the, wadi in irgi€a0#n M N Ma1H W" 0 00 MIM 10wo 4 mm MI€rilve On hew N IN M hktr elMAnk IN m w a A ntattar Ai f Ktithn u €AIIaA a yoatmen nng*.' Rf) A In_iA•enI iw#nfgvi h 9 Roo �lA rem f4ni9inlRNmi m Mint � waRr Mat ire and ypR�IMey k N Meesur! 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 (800) 426-4791, or on the web at http://water.epa.gov/drink/info/lead/index.cfm. Entrained Air If your tap water has a slightly "milky" appearance, you're probably experiencing an interesting but harmless phenomenon known as "entrained air." The milky color in the water caused by tiny air bubbles is harmless and is related to the operation of City wells. The air is dissolved under pressure in the groundwater, much like carbon dioxide in a bottle of soda. If your tap water is milky - colored and you want to confirm you are experiencing entrained air, rinse out a clear glass twice and then fill it with cold tap water. After a few moments, the water should begin to clear from the bottom of the glass to the top as the bubbles rise to the surface. If the water does not clear, please contact us. Want Additional Information? There's a wealth of information on the Internet about Drinking Water Quality and water Issues in general. A good place to begin your own research is the City of Tustin webslte; wwwTljstinCA.org, In addition to extensive information about your local water and the support and services we offer, you'll find links for many other local, statewide, and national resources. Haloaatl(k& ppb) so thlOr*AmIdual(ppm) (414) Conservation Tips for Outside Your Home Check your sprinkler system for leaks, overspray and broken sprinkler heads and repair promptly Saves up to 500 gallons per month Install a smart sprinkler controller Saves up to 40 gallons per day/over 13,000 gallons per year Use a broom instead of a hose to clean drives and sidewalks Saves up to ISO gallons each time Water your plants in the early morning or evening Saves up to 25 gallons each time Remove the Turf from Your Yard Saves about 42 gallons per square fooVper year Rotating Nozzles for Pop -Up Sprays Uses 20% less water than conventional sprinkler heads Additional water saving steps and devices are also available, and some of these are eligible for substantial rebates. Consider replacing your lawn with drought tolerant plants, synthetic turf, or permeable hardscape. Or add rotating sprinkler nozzles, a weather -based controller, or a drip line to enhance your automated irrigation system. And mulch. Hundreds of gallons a year can be saved by simply using organic mulch around plants to reduce evaporation. For complete rebate information for these water saving resources, visit; www.ocwatersmart.com. Source Water Assessments Imported (MWDSC) Water Assessment Every five years, MWDSC Is required by DDW to examine possible sources of drinking water contamination in its State Water Project and Colorado River source waters. In 2012, MWDSC submitted to DDW Its updated Watershed Sanitary Surveys for the Colorado River and State Water Project, which include suggestions for how to better protect these source waters. Both source waters are exposed to stormwater runoff, recreational activities, wastewater discharges, wildlife, fires, and other watershed -related factors that could affect water quality, Water from the Colorado River is considered to be most vulnerable to contamination from recreation, urban/stormwater runoff, Increasing urbanization in the watershed, and wastewater Water supplies from Northern California's State Water Project are most vulnerable to contamination from Nb=20 ND = 2.2 Turelelry(NrU) 9' 0111 ND=0.24 Evil WOO In the d sk@upon system are Ivewd quertarfry for towl klhoion*ras and holoak acadds; tawry kcadans aro toted monthlyY la rola, odor and araldlly Cola and oder were not datatwd In Jp1a. NMDt = Mkakr'um ksiduel DIsIMpHam treat; Moate = Ma�umum aeddual 9lsinleCWm teal Gaal 'Conwminnt h ragulaud by a s cod" kandard ro malroln aasdwuc quallon (taste, oda, cda). No more than 1% or rho warily oonoo mar be imirdve for ravel coliform Ngona The saaatenea d J cansecathq cowl caliarm pesttna samples, al@ at whiap Fanaim focal caldpnMF: coP, aenspprtaa an saute MC6 vhdakan, Of Chlodne Dlsinfe211 iAtfdadforTrwtment Erosion of Natural DemIts present in the ennroment ceppet opm) 1 f 0:9 011 001 ill No teary IMae years, 11 reside M ate Me far lead and €appal 11-14 cop, rho most msgnl Sal of samol¢s were €�k€rad m 3011 lead was deteaed in s homes; one eseeede4 One reppla a v a€lion irveL €upper eves iatestad in 0 homes aeseeded "Y Wien levetA A regulatory Kim level 4 f sonun"Imm of a €anfaminani 00lrlq m ire w"I of oft requiramorto 041, a MW rrat fa . M€(,10 0,09 0011 1114 NO 4:9 M4 1114 910 t 10 1114 19 0. an MCI 010 ph 41 vm5 not doww, band on the dowien 04 la palpeaes of snarling 01 ppk M pall of gla yntagl, a Neild ovlti s fewifirla maplietlnp, urban/stormwater runoff, wildlife, agriculture, recreation, and wastewater: USEPA also requires MWDSC to complete one Source Water Assessment (SWA) that utilizes Information collected In the watershed sanitary surveys, MWDSC completed Its SWA in December 2002, The SWA is used to evaluate the vulnerability of water sources to contamination and helps determine whether more protective measures are needed, A copy of the most recent summary of either Watershed Sanitary Survey or the SWA can be obtained by calling MWDSC at (213) 217.6850, Groundwater Assessment An assessment of the drinking water sources for the City was completed In December 2002, The ground- water sources are considered most vulnerable to the following activities not anoclated with detected contaminants, confirmed looking underground storage tanks, dry cleanam, end gas stations. The groundwater sources aro considered most vulnerable to the following activities associated with contaminants detected in the water supply: known contaminant plumes, historic agricultural activitlas and application of fertilizers, and aawar collection systems, A copy of the complete assessment Is available at State Water Resources Control Board, Divislon of Drinking Water, 605 W; Santa Ana 814, Building 28, Room 825, Santa Ana, CA 82701, You may request a summary of the assessment by contacting the City of Tustin Water Services at (714) 5734178, co Q <0 m a <m Y- a m E 0its -6aX) ou mg p L6iGgi4 n r- gm AADS KJ � C4 K<:;J �x10o� r�gJ�o 01 ry r`l -6 IN 8r ._ K t c u 3 m sK�rar yy o 138 +W JR to, BE tC 4*1 Z m fsWI 1-4 C� sEE o0 E� V) c 8 �. 3 eq 3 a 0 z Q ] ° roa Ar%lw AmlW . 1a�6 U1,40' Ila (it I 'Report } 'C ill. � r a� c E N a m m �i d 0 V IA 4A c cr CC un 0 N a� S 42 c f- v bO c u L aU E O u c o } +� m v c c O E CL N +� O w O o V, 7 tw O c u y 0 a v O L a� 3in C O @ C N VI ;' OLn C O 3 O M T C N M a m C E "' 1 = N T O y Cu c E 7 C m y O O 8 E The Quality of Your Water is Our Primary Concern Sources of Supply Orange County's water supplies are a blend of groundwater provided by OCWD and water imported from Northern California and the Colorado River by the Municipal Water District of Orange County (MWDOC) via MWDSC. Groundwater comes from a natural underground aquifer that is replenished with water from the Santa Ana River, local rainfall and imported water. The groundwater basin is 350 square miles and lies beneath north and central Orange County from Irvine to the Los Angeles County border and from Yorba Linda to the Pacific Ocean. More than 20 cities and retail water districts draw from the basin to provide water to homes and businesses. Orange County's Water Future For years, Orange County has enjoyed an abundant, seemingly endless supply of high-quality water. However, as water demand continues to increase statewide, we must be even more conscientious about our water supply and maximize the efficient use of this precious natural resource. OCWD and MWDOC work cooperatively to evaluate new and innovative water management and supply development programs, including water reuse and recycling, wetlands expansion, recharge facility construction, ocean and brackish water desalination, surface storage and water use efficiency programs. These efforts are helping to enhance long-term countywide water reliability and water quality, A healthy water future for Orange County rests on finding and developing new water supplies, as well as protecting and improving the quality of the water that we have today. Your local and regional water agencies are committed to making the necessary Investments today in new water management projects to ensure an abundant and high-quality water supply for our future. Basic Information About Drinking Water Contaminants 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 layers of the ground It dissolves naturally occurring minerals and, In some cases, radioactive material, and can pick up substances resulting from the presence of animal and human activity. Contaminants that may be present in source water Include; - Microbial contaminant, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations and wildlife - Radioactive contaminants, which can be naturally occurring or be the result of all and gas production or mining activities, inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban storm runoff, Industrial or domestic wastewater discharges, oil and gas production, mining and farming, - Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban atormwoter runoff and residential uses, • Organic chemical contaminants, Including synthetic end volatile organic chemicals, which are by=products of industrial procesaos and petroleum production, and can also come from gasoline stations, urban stormwater runoff, agricultural application and septic systems. In order to ensure that tap water is safe to drink, USEPA and the DDW prescribe regulations that limit the amount of certain contaminants in water provided by public water systems. DDW regulations also establish limits for contaminants in bottled water that must provide the same protection for public health. 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. More information about contaminants and potential health effects can be obtained by calling the USEPA's Safe Drinking Water Hotline at (800) 426-4791. Immuno -Compromised People Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno- compromised people, such as those with cancer who are undergoing chemotherapy, persons who have had organ transplants, people with HIV/AIDS or other Immune system disorders, some elderly persons and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. The USEPA and the federal Centers for Disease Control guidelines on appropriate means to lessen the risk of Infection by Cryptosporidium and other microbial contaminants are available from USEPA's Safe Drinking Water hotline at (800) 426-4791 between 10 a.m, and 4 p,m, Eastern Time (7 a.m, to 1 p,m. in California). Conservation Tips for Inside Your Home Install aerators on the kitchen faucet Reduces row to less than i gallon per minute Cook food in as little water as possible Saws water and helps retain food nutrients Keep a pitcher of drinking water In the refrigerator Saves gallons o/ water and it's always cold Wash only full loads of laundry and dishes Saws up to 50 gallons per week Soak pots end pans Instead of letting water run while you scrub them clean Saws water and makes the/ob easier Buy water -saving devices like high-eHlciency toilets and clothes washers, You'll save many gallons of water per day, and many of them are eligible for rebates. To learn more, visit; www.ocwatommort.com, Questions about your water? Contact us for answers. For Information about this report, or your water quality In general, please contact Joe Lozano at (714) 573=3178, The Tustin City Council meats the first and third Tuesdays of every month at 740 pm In the City Council Chambers, 300 Centennial Way, Tustin, California, Flasse foal from to participate In these meetings, For more information about the health effects of the listed contaminants In the following tables, call the USEPA hotline at (800) 4384791, Important Information the EPA Would Like You to Know Issues in Water Quality that Could A�ect Your Health About Lead. in Tap Water 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. The City 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 at (800) 426-4791, or on the web at www.epa.gov/safewater/lead, What are Water Quality Standards? Drinking water standards established by USEPA and DDW ant limits for substances that may affect consumer health or sesthstic qualities of drinking water. The chart In this report shows the follawfngtypes of water quality standards, • Maximum Contaminant Level (MCL): The highest level of a contaminant that Is allowed in drinking water, Primary MCLS aro set as close to the PHGs (or MCI.Gii) as is economically and technologically feasible. • 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 wntamlnants. • Secondary MCLS; Set to protect the odor, tests, and appearance of drinking water. • Primary Drinking wafer standard: MCU for contamilfants that affect health along with their monitoring and reporting requirements and water treatment requiromants. • Regulatory Action Level (Au: The concentration of a contaminant, which, N exceeded, triggers treatment or other requlnments that a water system must follow, How are Contaminants Measured? Water Is umpled and tested throughout the year, Conteminents ora measured Im • parts per million (ppm) or milligrams par liter (mg/L) • parts per billion (ppb) or mlcrogrems par liter (pg/L) • parts per trillion (ppt) or nanograms per liter (ng/L) What is a Water Quality Goal? In addition to mandatory water quality atandords, USEPA and DOW have sat voluntary water quality scala for aom@ contami- nants, Water quality call are often lot at such low I@v@la that they ere not achievable in practice and ora not directly mmsumbla. Novertholem, that@ goals Provide useful guidoposls and direction for water management practical. The chart In this report Includes three types of water quality goals: • Maximum Contaminant Level Goal (MCLG): The level of A contaminant In drinkiwater below who them is no known or expected risk to health MCM are act by OMPA; • Maximum Residual Disinfectant Level Goal (MRDLG): Th@ level of a dfinklmill water 441rifWant below which there is no known or opo@ted risk to health, MROM do not reflect the beflellta of the wo of disinfectants to control mi€?mfal contaminants, • Public Health Goal (PHG): The l@vol of a contaminant In drinking wall? below which there is no known of tlxpe€t@d risk to hoalth: PNPB car@ act by the 0111®mfa Envimnimonlal Protection Agora€y g Water Fluoridation Fluoride has been added to U.S. drinking water supplies since 1945. Of the 50 largest cities in the U.S., 43 fluoridate their drinking water. In December 2007, MWDSC joined a majority of the nation's public water suppliers in adding fluoride to drinking water in order to prevent tooth decay. In line with recommendations from the DDW, as well as the U.S. Centers for Disease Control and Prevention, MWDSC adjusted the natural fluoride level in imported treated water from the Colorado River and State Water Project to the optimal range for dental health of 0.6 to 1.2 parts per million. Our local water is not supplemented with fluoride. Fluoride levels in drinking water are limited under California state regulations at a maximum dosage of 2 parts per million. Additional information about the fluoridation of drinking water is available on these websites: U.S. Centers for Disease Control and Prevention 1(800) 232-4636 • www.cdc.gov/fluoridation/ State Water Resources Control Board, Division of Drinking Water www.waterboards.ca.gov/drinking-water/ certl is/ddn kingwater/Fluoridation.shtml For more information about MWDSC'sfluoridation program, please call Edgar G. Dymally at (213) 217-5709 or email him at edymally@mwdh2o.com. Radiologicals - Tested in 2014 and 2015 AIPNRodlatlon(Pcn) t5 (0) ND ND ND -4 No Erosion of Natural Deposit Beta Radiation (PCvu s0 (0) NA 5 4 - 6 No Deny of Man-made or Natural Deposits llnnium (aCll(1 10 0.43 1 9 NU - 3 No Eroiion of kiW Depasid Inorganic Chemicals -Tested in 2015 200*, ON NO 155 _ NO - 240 Numinum w) 1 0.6 _ ND 0,155 ND - 0.24 No lteaanent Proses Residue, Natural Depgs_ Its Arsenic ), 10 0004 ND 2.3 NTD 2.3_ No ErosfonoTNatura_I ks Barlum (pm) 1 2 <0.1 0.125 NO 0125 No Erosion of Natural D wits Flood& (Ppm) treetmem-relateds Comrol 6* 0:8- i1 ppm NA 0.8 0.8-1 No Erosion of Natural -De i - Optimal Level 0.1 ppm Natural omrr o aMrlala- �pif(O Coriau0tana dim i�doij 101_ _ n�_ 13b3 Fluoride (PPm) 1 1 01111 NA 0115-0.26 No Erosion of Natural DepOilts 1,111nM (ppm as N) 10 10 412 NO ND -1.95 No hrdllass,3epti uAi NMN+NWM(ppmaN) 10 10 4.22 ND ND -1,95 No FortillmeSepticTanks Selenium (ppb) 50 30 <5 NO ND -105 No %went Process kesidus, Natural Deposits Secondary Standards* - Tested in 2015 NO -0.1 No Erosion of Natural Deposits Aluminum (ppb)_ 200*, ON NO 155 _ NO - 240 No 1)ut"rit Process Residue. Natural Deposit - _ Chloride rah 201 145__ 100 5d,bm349 No EroslanofhNwraTDPPo�it _ __ COkir ((coloruu-"b) 1- *. Na ND - 1 ND -1 No > roslan dl NaMi Ooa(dim dadornum6er� 3a Na ND .- 2 - ND 2 No Natural omrr o aMrlala- �pif(O Coriau0tana dim i�doij 101_ _ n�_ 13b3 1040 $�5 3,30 No 3ubspnns ftForm Ions In Watw _ _ _ SulfateiPPmi 500' _ Ni 169 25� d51 -32B -No Erasion cINI-i_- foidli7(ssoTvadSill&(ppm) ibbOi 7i l _ _ _ __ iI6 _m NO 1Vi Erosan oft - - turtildRy ON S` nla 4,1 NO NO -0.1 No Erosion of Natural Deposits 1,01osens(0) NL=1 Na o.i ND NO -0.2 nit A1kollmq, tMI (ppm a CoCOs l Not Regulated rah 201 IN 120413 323 Ne. Na _ PH (PH units) Not Regulated No 711 1,1 1,441 -lis N rale G lduin PPmi NotRegullow Flo IIs � 91 6 91. 31.1 22i of chionte(I N1=100 Na 90 - 0 NO=130 MIA Chromium, Hesevolent�t��r 10 0,02 _ 0.11 6,01 ppb) s 000) i&J ---<01 N0-0,4 N041104 Na troslonofNakwooposik,lmlusoialDhdii Erosion oiNa" industrial %a] Ha ppm ab CaCW Not R ulatsd Na 415 309 120 =191 rasa Erosion 0 Natural Disks Fi��k naium I Not R uliuid Ni 90.0 V 8.7=94;1 No Erosion ofNewel Depagis Molybdenum, foul {ppb) NetAoqulated No _ io 4,9 4.4=)O Na Erosion of Natural Daposlu PH (PH units) Not Regulated No 711 1,1 1,441 Ns Additx Hydrogen Ions __ Potmium (PPN Not Regulated Ne 14 4:4 16 - 5 Na Erosion of Nowral Dopub _ - _- filum (pn) Not Ntgulated No 44.1 101 _ it -161 __ rah Erman of Nawrsl Da"ih _ _ _ _ _ loontiuln Total (gp6) Not R elated Ni 646 11D 4)o = LIDO _ 111 - - - - 00-1-14-6011Natursl Dep-mIt Totamium ie Calton fppm) Na 031 16 ND= ).1 _ Na Rufleff of Loathing W" NaNitel offiffiitt Vanadlum,bill Will NL= --1Q Na 414 1.1 1�,114J mto Erosion of NaturalDepoh Itlea perW � �Niri = PsrirN aef �k a pxeEvr e� ass ilur, NTII = nsphelsmst k turNdlry un11s; txaMlaia mlaomhas oar fanumsin; MII Nai RaagufI 0 o�sta�s 41st tksn de deMsikn IImM her rapsruna Psi in; MCL - Mali tim Ceniam I ie (Mae) =lacteal hick QN14 = falxom a iwhNt MaaUh ogee. ML b NsNllasusn taval Na a rel applitahra; fiT aeaur t leahnf9ae '€anlaminant iagulaw by a faWA" afandmd. "' HNRvNlnl alxamWm kf reedatad swtx en MC4 sl to epb hili was nal dlteold, hese/ an the dReMNn IIMN kr gumesas of rogenk9 H t gnu Hesevelenl oinlovm urea iixludod as sen FI NR unragukittiil dmnkals rtmNiing meNt ri f i" € mitim 0 reexldod wxh V WI_ d 1s go Mil was net 0ofNd, basad en the dewtom limit for gurgesos N regardng Of so gas W Mrerntam was imww as gen of Nice unrslAW rhomO ntgyhMy maeilenng. 1) H449 single tufbidly triffly om ill 01 NTU 0,4 No loll 1) 9owmale of sample 101 than QJ NIU 01% 100% No loll fiigldnt a s Massaro sf Ma aMudtnoss 0 ask vafkt en o kr* e# nl€dafs m+A1lr lams d wh m 1 IPduds her nisi m € aorganitms tow lurhd y in.mill"lor ysated wales k s cased hdksls<M +±gtl+atisa f�NrN�n n Mlhd a tmeonam {dal nlgaa' lffl A Ir"MIN tsannlpae n a "44 Min, nIs to radaso the kIN�u 0 wiaMManls in 01*1 wo halt ale dHnaah arid 5@me_Ilmas ift00411 to mow dirlENy Nitrate Advisory At times,nitrate in your tap water may have exceed- ed one-half the MCL,but it was never greater than the Check your sprinkler system and correct for overspray Use organic mulch around trees and plants to MCL of 10 milligrams per liter(mg/L).Nitrate in your Saves 12-1S gallons each time you water reduce evaporation,improve soil&prevent weeds drinking water in 2015 ranged from non-detect to 7.95 mg/L Choose drip irrigation for your trees and shrubs Saves about 20-30 gallons per 1,000 sq.ft. The following advisory is issued because in 2015 we Saves up to 1S gallons each time you water each time you water recorded nitrate measurements in the drinking water Use a broom instead of a hose Additional water saving steps and devices are also supply which exceeded one-half the nitrate MCL. It takes very little time to sweep available,and some of these are eligible for Nitrate in drinking water at levels above 10 mg/L is a and the water savings add up substantial rebates.Alsor water your garden deeply health risk for infants of less than six months of age.Such Plant drought-resistant trees and plants to promote healthier,stronger plants.Regular nitrate levels in drinking water can interfere with the Saves about 30-60 gallons per 1,000 sq.ft. pruning will help your plants use water more capacity of the infant's blood to carry oxygen,resulting in each time you water efficiently.You won't need to water as often,either. a serious illness;symptoms include shortness of breath Water plants in the early morning for complete rebate information for these water and blueness of the skin.Nitrate levels above 10 mg/L Reduces evaporation and ensures deeper watering saving resources,visit:www.ocwatersmart.com. may also affect the ability of the blood to carry oxygen in Water plants in the early morning 01 other individuals,such as pregnant women and those Reduces evaporation and ensures deeper watering Want Additional Information? with certain specific enzyme deficiencies.If you are r There's a wealth of information on the internet caring for an infant,or you are pregnant,you should ask about Drinking Water Quality and water issues advice from your health care provider. in general.A good place to begin your own Entrained Air - research is the City of Tustin website: wwwTustinCA.org. If your tap water has a slightly"milky"appearance, In addition to extensive information about your you're probably experiencing an interesting but harmless local water and the support and services we phenomenon known as"entrained air." offer,you'll find links for many other local, The milky color in the water caused by tiny air bubblesSource Water Assessments statewide,and national resources. is harmless and is related to the operation of City wells, Imported(MWDSC)Water Assessment The air is dissolved under pressure in the groundwater, much like carbon dioxide in a bottle of soda,If your tap Every flue years,MWDSC is required by DDW to examine possible sources of drinking water contamination in its State water is milky-colored and you want to confirm you are Water Project and Colorado River source waters. experiencing entrained air,rinse out a clear glass twice In 2012,MWDSC submitted to DDW its updated Watershed Sanitary Surveys for the Colorado River and State Water Project,which include suggestions for how to better protect these source waters.Both source waters are exposed to and then fill It with cold tap water,After a few moments, stormwater runoff,recreational activities,wastewater discharges,wildlife,fires,and other watershed-related factors that the water should begin to clear from the bottom of the could affect water quality. glass to the top as the bubbles rise to the surface.If the Water from the Colorado River is considered to be most vulnerable to contamination from recreation,urban/stormwater water does not clear,please contact us, runoff,Increasing urbanization in the watershed,and wastewater.Water supplies from Northern California's State Water Project are most vulnerable to contamination from 2015 City of Tustin Distribution System Water Quality iurban/stormwater runoff,wildlife,agriculture, Disinfection recreation,and wastewater. Byproducts .a UMRDLG) Amount Detections Violation? of Contaminant USEPA also requires MWDSC to complete one Source Water Assessment(SWA)that utilizes Tote)TAhalo ids(p es(ppb) 60 U ND-443 No Byproducts of chlorine Dislnfecdon Information collected In the watershed sanitary Hdoeudc Adds(p b) 60_ i1 ND-153 No byproducts of Chlorine Disinfection Chlorfmi Residal PH (yo i.o ND-2.2 No bltUieaemAddedfor lrutment surveys,MWDSC completed its SWA In December Aesthetic Quality 2002,The SWA Is used to evaluate the vulnerability of Tur6ldity(NTu) so C0,1 No-0131111 No Erosion of Natural Deposits water sources to contamination and helps determine Floiopftmiinft c1lithonrforlipumenuatel art raWWI uaal�umenasaNhatowkae*;lweeryloat"Nitsean brcef War n lufww whether more protective measures are needed. Ccaama�i t roplownot debyaw in 29 ripalendarrd� &f au•nr M Aftow ni We All Need to Be Water Wise All Year Long One Average Rainy Season Does Not Overcome the Effects of Four Dry Years WInter storms this year boosted California's largest reservoirs to their historically average TheColorado Aqueduct Imported water from the Colorado River travels over levels, but other key reservoirs remain critically low as 240 miles to get to Crimp County.Alarg the way,it is lifted over 1,601)feet by a series of five pumping our historic drought keeps its grip on the state. One plants.Shown here,the Gene Pumping Station near the Colorado River boosts the water over 300 feet. average season does not overcome the effects of four $ loom tlrera it Rays through a series of canals,pipes `4 tunnels,and sloons,across the Mojave Desert and dry years,and rain and snowfall were well below beneath the San Jacinto Mountains on its way to average in Southern California.To learn more about themeet the needs ofthe peopleofSwrthemCallfomia. To view a shortYouTulbe video on the construction drought, or to find useful tips for how to conserve and history of the Colorado Aquedatdid here water, click the logos to visit: Save Our r. bewaterwise.come or `%TER The California State Water Project The State Water Project one of the largest weber sysrivers In To learn about programs and devices that can help Notemsmffiew°aandtrans transports it through Northern California and transports it Ihraugh a save water,along with information on rebates for network ofcanals,Wines,and tunnels,oer many hundreds of miles to Southem Cellfomla, these water saving resources,visit: where ltls distributed throughout the region.alorg the way,It is lifted almost 3,800 feet,with the www.00WaterSmart.com highest n hle ichseprof 26feetovertheTehachapi separate the San Joaquin Valley from Southern Caltbmia,To New a short YWTube To view a short YouTube video on multiple ways to ; ® Video that shows the 1"lhando"Plexityofdre State Water Project,click here, conserve water,click here, Conservation Tips for Inside Your Home . . . Install aerators on the kitchen faucet Keep a pitcher of drinking water Reduces flow to less than 1 gallon per minute in the refrigerator .' ! Soak pots and pans instead of letting water run Saves gallons of water and It's always cold while you scrub them clean Wash only full loads of laundry and dishes Saves water and makes the job Basler Saves up to SO gallons per week Collect water used to wash fruits and vegetables Plug the sink instead of running water to rinse your razor Use It to water your houseplants Saves up to 300 gallons a month Cook food in as little water as possible Don't run water to thaw food: �- Saves water and helps retain food nutrients Defrost In the refrigerator ,, _ t4 i AL +t We Use the Most Water in Our Homes on the Outside Save the Most Where You Use the Most: Make Your Outdoor Use Effuient! 0 utdoor watering of lawns and gardens How Residential Water is Used in Orange County makes up approximately 60% of home water use. By reducing your outdoor water use 0 Showers&Baths:8% — by either cutting back on irrigation or planting QClothes Washers:9% Toilets:11% Lans more drought tolerant landscaping— you can ' ' 0 Dishwashers:1% dramatically reduce your overall water use. - OLeaks:7% 3 ®Faucets:6% For rebates on water saving devices, visit: Data is representative of average consumption; www.00WaterSmart.com your water usage may vary. Tips for Conserving Water Outside Your Home. . . Use a broom instead of a hose It takes very little time to sweep and the water savings add up Water plants in the early morning , Reduces evaporation and ensures deeper watering Plant drought-resistant trees and plants Saves about 30-60 gallons per 7,000 sq.ft.each time you water 5 Remove the turf from your yard: Saves about 42 gallons per square fooVper year Check your sprinkler system for leaks, overspray �t and broken sprinkler heads and repair promptly; Saves 12-75 gallons each time you water Use organic mulch around trees and plants - to reduce evaporation and improve the soil Saves about 20.30 gallons per 7,000 sq.ft.each time you water Additional water saving steps and devices are also available, and some are eligible for substantial rebates. You should consider a cover for your swimming pool or hot tub to reduce evaporation. And water your garden deeply to promote healthier, stronger plants, Regular pruning will help your plants use water more efficiently. You won't need to water as often, either, T'uSTIN For complete rebate Information for these water saving resources, visit; www.acwawtorsmawrt.com, City of Tustin Water Services Talk to your family and friends about saving water. Soo Centennial Way If everyone does a little,we all benefit a lot. MAJOWw"VP�AN fiuI in,�ali�rnia � 1® S@t N E &t > Q,�c m to t! K � *" t� G 1 O O• v,$;� Zu 0 liee Rl1 V y_. C �� E •� � � � J N M�40 Ica-, -4:,- oo �. cx2 .8 • 13U C ` 4..J :K t-I 4j;,< v v }.� :' �e- C U 441 M 4q3 E D5 -MCI H- • Q ilg *K ? MIS FSS _ cJi Wo Bi I—Ki tt_, TH 75r r�- ..� �.., (UU ' KF I®j OjrU Klo T" 07 07 UIN ' W n ��