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Consumer Confidence Report 2019 EN ESPANOL Este informe contiene informacion muy importante sobre la calidad del agua que usted consume. Por favor de traducirlo, o hable con alguien que lo entiende bien. How Much Water Do We Use? In 2018, the residents and visitors of Pismo Beach used approximately 1647 acre feet or 539 million gallons of water. The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and can pick up substances resulting from the presence of animals or human activity. Your 2019 Water Quality Report The City of Pismo Beach is pleased to present this annual report describing the quality of your drinking water. Included are details about where your water comes from, what it contains, and how it compares to State standards. We sincerely hope this report gives you the information you seek and have a right to know. Where the Residents and Consumers of Pismo Beach get their water? Surface Water Lopez Lake – The City is entitled to receive 892 acre feet per year, approximately 291 million gallons of water. State Water The City is entitled to receive 1240 acre feet per year, approximately 456 million gallons of water. Groundwater Santa Maria Ground Water Basin – The City is entitled to extract 700 acre feet per year, approximately 228 million gallons of water. Consumer Confidence Report 2019 Pismo Beach Water System Pismo Beach Water Division (805)773-7054 www.pismobeach.org Delivering Excellence The City of Pismo Beach Water System met all Federal and State standards for drinking water during 2019. WATER CONSERVATION REMINDER AVOID WASTEFUL USE: www.ThinkH20now.com Contaminants that may potentially be present in untreated source water, surface water and well water include: • Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife. • Inorganic contaminants such as salts and metals, which can be naturally occurring or result from urban storm runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming. • Pesticides and herbicides, which may come from a variety of sources such as agricultural, urban storm runoff, and residential uses. • Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, from gas stations, urban storm water runoff, and septic systems. • Radioactive contaminants, which occur naturally or from oil and gas production and mining activities. 100% 003-0.1 0 Table 2 - Microbiological Contaminants Contaminant (reporting units)MCL PHG(MCLG) or (MRDLG)Range Average Range Average Range Average Potential Source of Contamination Total Coliform Bacteria (MPN/100mL)>5.0% of monthly samples are positive 0 -----N/D 0 0.00%0 ND Naturally present in the environment Heterotrophic plate count (CFU/mL)TT = adequate disinfection < 500 ----ND-18 ND 0-2 0 ND-11 ND Naturally present in the environment Aluminum (ppm)1 (b)0.6 ND-0.046 0.026 ND-0.094 0.056 ND-0.047 0.027 Erosion of natural deposits; residue from some surface water treatment presses Arsenic (ppb)10 0.004 3.6-4.6 4.0 ND ND 4.0-5.3 4.4 Erosion of natural deposits, runoff from orchards; glass and electronic production Fluoride (ppm)2.0 1.0 ----0.26 ND ND ----0.300 Erosion of natural deposits Barium(ppm)1 2 ----0.027 ND ND ----0.029 Discharge of oil drilling Gross Alpha Particle Activity (pCi/L)15 0 0.028-3.15 1.25 ND ND 1.42-1.59 1.51 Decay of natural and man-made deposits Contaminant (reporting units)MCL PHG(MCLG) or (MRDLG)Range Average Range Average Range Average Potential Source of Contamination Chlorite (ppm)1 0.05 0.44-0.63 0.56 --------0.62-0.76 0.69 By-product of drinking water disinfection Chlorate (ppb)RAL = 800 ----210-579 385 --------302-401 351 By-product of drinking water disinfection Chlorine Dioxide (ppb)MRDL = 800 as CI02 800 ND-130 ND --------ND-220 220 Drinking water disinfectant added for treatment Chloride (ppm)500 --------41 13-146 59 ----34 Runoff/leaching from natural deposits Color (CU)15 --------2 ND ND ----2 Naturally occurring organic materials Copper (ppm)1.0 --------0.122 ND ND .01-.029 0.018 Erosion of natural deposits Corrosivity (LI)Noncorrosive ------------12 12 --------Balance of hydrogen, carbon and oxygen in water Geosmin (ppm)NA NA --------ND-6 2.8 --------An organic compound mainly produced by bacterial growth in surface water Odor - Threshold (TON)3 ----1.0-3.0 (a)1.7 (a)ND ND 1.0-4.0 1.9 Naturally occurring organic materials Specific Conductance (uS/cm)1600 --------750 138-762 403 ----790 Runoff/leaching from natural deposits Sulfate (mg/L)500 --------118 46 46 ----129 Runoff/leaching from natural deposits Turbidity (NTU)5 units ----0.01-0.89(a)0.11(a)ND-0.12 0.05 N/A N/A Soil Runoff Total Dissolved Solids (ppm)1000 ----440-520 480 260 260 490-550 510 Runoff/leaching from natural deposits Alkalinity as CaCO3 (ppm)NA NA 190-250 220 30-80 56 230-270 250 Runoff/leaching from natural deposits; seawater influence Calcium (ppm)NA NA 70-92 79 19 19 85-96 89 Runoff/leaching from natural deposits; seawater influence Hardness as CaCO3 NA NA 300-390 340 26-144 82 360-410 380 Generally found in ground and surface water Magnesium (ppm)NA NA 31-40 35 12 12 37-41 39 Runoff/leaching from natural deposits; seawater influence pH NA NA 7.83-8.37 8.08 7.7-8.7 8.4 7.76-8.38 8.03 Runoff/leaching from natural deposits; seawater influence Potassium (ppm)NA NA --------3.1 3.1 --------Runoff/leaching from natural deposits; seawater influence Sodium (ppm)NA NA 29-36 31 58 58 ----31 Runoff/leaching from natural deposits; seawater influence Total Organic Carbon (f) (TOC) (ppm)TT NA --------1.5-3 1.9 --------Various natural and man-made sources 2019 Water Quality Data for Lopez Treatment Plant / State Water Project The number of violations of any surface water treatment requirement Turbidity (NTU) measurement during the year Lowest monthly percentage of samples that met Turbidity Performance Standard 1 0.023-0.649 0 100% Treatment Technique for Central Coast Water Authority (State Water) Conventional Treatment Contaminants with a Primary Drinking Water Standard Treatment Technique for Lopez Project Alternative Filtration Table 1 - Treatment of surface water sources, combined filter Effluent Turbidity Turbidity Performance Standard - Turbidity is a measure of the cloudiness of the water. We monitor it because it is a good indicator of the effectiveness of the filtration system. Turbidity of combined filter effluent water must: 1. Lopez 0.15 & CCWA 0.3, less than or equal to in 95% of measurements in a month 2. Not exceed 1.0 NTU for more than eight consecutive hours Table 7 - Contaminants with no MCL's Table 6 - Regulated Contaminants with Secondary MCL's Table 5 - Disinfectant Byproducts, Disinfectant Residuals, and Disinfection Byproduct Precursors Table 4 - Radioactive Contaminants Table 3 - Inorganic Contaminants Lopez WTP Delivered (Lopez and State Water)CCWA PPWTP Delivered (Lopez and State Water)CCWA PPWTP Lopez WTP Contaminants Highest No. of Detections MCLG Total Coliform Bacteria 0 0 Fecal Coliform Bacteria of E. Coli 0 0 Contaminants (CCR UNITS)No. of Samples --No. of Sites Exceeding RAL RAL PHG Lead (ppb)20 0 15 0.2 Copper (ppm)20 0 1.3 0.3 Contaminants (CCR UNITS)No. of Samples --No. of Sites Exceeding RAL RAL PHG Lead (ppb)10 0 15 0.2 PRIMARY DRINKING WATER STANDARDS WELL #5 WELL #23 PRIMARY CONTAMINANT MCL MCLG PHG RANGE RANGE Arsenic (ppb)10 0.004 4 (h) Chromium (total) (ppb)50 100 ug/l ND (h)Erosion of natural deposits Nitrate (as N) (ppm)10 10 ND (h) Fluoride (ppm)2 1 ND (h) Gross Alpha Particle Activity (pCi/I)15 NA 5.18 (h) Uranium (pCi/I)20 0.43 3.77 (h) WELL #5 WELL #23 SECONDARY CONTAMINANT RANGE RANGE Chloride (ppm)125 (h) Iron (ppb)110 (h) Manganese (ppb)30 (h) Sulfate (as SO4) (ppm)170 (h) Total Dissolved Solids (ppm)900 (h) Zinc (ppb)ND (h) WELL #5 WELL #23 CONTAMINANT RANGE RANGE Total Alkalinity as CaCO3 (ppm)350 (h) Calcium (ppm)125 (h) Sodium (ppm)56 (h) Magnesium (ppm)55 (h) WELL #5 WELL #23 Aggressive Index 12.3 (h) Specific Conductance (micromhos)1320 (h) Total Hardness (ppm) (as CaCO3)538 (h) pH (units)7.3(g)(h) Turbidity (NTU)*****0.9(g)(h) MCL MRDL RANGE 80 NA 34-55 60 NA 27-39 4.0 4.0 0.10-2.80 UNREGULATED CHEMICALS Avg. Level Detected MCL Boron (ppm)0.2 NS Vanadium (ppb)3 NS 2019 WATER QUALITY DATA FOR PISMO BEACH NA MCL=1600 NA NA Runoff; leaching from natural from natural deposits; industrial Soil runoff; leaching from natural deposits Improper waste disposal POTENTIAL CONTAMINANTION SOURCE WITHOUT A DRINKING WATER STANDARDS 500 1000 5000 MCL SECONDARY DRINKING WATER STANDARDS Substances that form ions when in water; seawater influence Generally found in ground and surface water NA Soil runoff; leaching from natural deposits ADDITIONAL ANALYSIS Runoff; leaching from natural deposits; seawater Runoff; leaching from natural deposits; seawater Runoff; leaching from natural deposits; seawater Runoff; leaching from natural deposits; seawater NA MCL=5 NA NA NA NA N/A 100 50 Naturally-occurring; element found in soil and water in the form of boric acid and sodium tetraborate Naturally-occurring; has been found in association with hazardous waste sites Typical Source of ContaminantsRALRange of Detections Low- High Table #5 - WELL SAMPLING RESULTS SHOWING DETECTION OF UNREGULATED CHEMICALS ND-.21 Chlorine Residual By-product of drinking water chlorination By-product of drinking water chlorination Disinfectant DISTRIBUTION SYSTEM ***** Turbidity is a measure of the cloudiness of the water. The City monitors this because it is a good indicator of water quality. High turbidity can hinder the effectiveness of disinfectants. DISINFECTANT RESIDUAL AND BY-PRODUCTS Total Trihalomethanes (ppb) Total Haloacetic Acids (ppb) Runoff; leaching from natural deposits; seawater Natural or industrial Natural or industrial MCL 500 300 50 POTENTIAL CONTAMINANTION SOURCE Typical Source of Contaminant Erosion of natural deposits Erosion of natural deposits Naturally present in the environment Human and animal fecal waste POTENTIAL CONTAMINANTION SOURCE Erosion of natural deposits Erosion of natural deposits; water additive that promotes strong teeth; discharge from fertilizer and aluminum factories Runoff and leaching from fertilizer use; leaching from septic tanks and sewage; erosion of natural deposits Table #3 - 2017 LEAD SAMPLING RESULTS FOR SCHOOLS K-12 (2 SCHOOLS TESTED) 90th Percentile Level Detected Typical Source of Contaminant 3.5 Internal corrosion of household plumbing system; discharges from industrial manufacturers; erosion of natural deposits Table #1 DISTRIBUTION SYSTEM WATER SAMPLING RESULTS SHOWING DETECTION OF COLIFORM BACTERIA Table #2 - 2017 HOME SAMPLING RESULTS SHOWING THE DETECTION OF LEAD AND COPPER Table #4 - GROUND WATER SAMPLING TEST RESULTS FOR DETECTION OF CONTAMINANTS No. of Months in Violation 0 0 90th Percentile Level Detected ND 0.46 Internal corrosion of household plumbing system; discharges from industrial manufacturers; erosion of natural deposits Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives Typical Source of Contaminant MCL More than 1 positive monthly sample A routine sample and a repeat sample are total Coliform positive, and one is also fecal Coliform or E. Coli (g) Laboratory sample (h) Well #23 not in service for 2019 Maximum Contaminant Level (MCL) Regulatory Action Level (RAL) Maximum Contaminant Level Goal (MCLG and Public Health Goal (PHG) Maximum Residual Disinfectant Level (MRDL) Maximum Residual Disinfectant Level Goal (MRDLG) Primary Drinking Water Standards (PDWS) Primary Drinking Water Standards (SDWS) Treatment Technique (TT) Regulatory Notification Level (NL) Running Annual Average (RAA) Not Collected (NC) Not Reported (NR) Not Standard (NS) Not Detected (ND) Not Analyzed (NA) WAIVED pCi/L ppm ppb uS/cm CU NS CFU/ml NTU TON USEPA CDC LI LopezWTP CCWA PPWTP TOC More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency's State Drinking Water Hotline (1-800-416-4791). Some people may be more vulnerable to contaminants in drinking water then the general population. Immune-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplant, people with HIV/AIDS or other immune system deficiencies, some elderly, and infants can be particularly at risk of infections. These people should seek advice about drinking water from their health care providers. 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 of Pismo beach 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 drinking water testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at http://www.epa.gov//lead. (a) Distribution system samples. (b) Aluminum has a Secondary MCL of 0.2 ppm (e) The MRDL for chlorine is based on a running annual average of distribution system samples. (f) Increases in odor have been associated with algae blooms. During times of increased algae blooms an odor in the algae is controlled with algaecides and the odor is reduced to acceptable levels by treating water with powder activated carbon. (c) Compliance based on the running annual average of samples computed quarterly. (d) TOCs are taken at the treatment plant's combined filter effluent. LOPEZ WATER TREATMENT PLANT CENTRAL COAST WATER AUTHORITY POLANIO PASS WATER TREATMENT PLANT TOTAL ORGANIC CARBON USEPA/CDC Provides guidelines on appropriate means to the risk of infection by Cryptosporidium and other microbial contaminants, for information call - Safe Drinking Water Hotline (1-800-426- 4791). This hotline operates from 9 a.m. to 5 p.m. EST, Monday through Friday. For more information contact: COLOR UNITS An arithmetic average of all sample is computed quarterly. The quarterly average is then averaged against the previous three quarters worth of data to provide an annual running average. The highest running average over a twelve month period used for compliance In order to ensure that tap water is safe to drink, EPA, and the California State Water Reserouces Control Board, prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water which 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 does not necessarily indicate that water poses a health risk. On September 4, 2007, the CDPH granted the TOC waiver to the Lopez WTP. The facility upgraded to Membrane Treatment PICOCURIES PER LITER (A MEASURE OF RADIOACTIVITY) PARTS PER MILLION, OR MILLIGRAMS PER LITER (MG/L) PARTS PER BILLION, OR MICROGRAMS PER LITER (G/L) MICROMHOS PER CENTIMETER (UNIT OF SPECIFIC CONDUCTANCE OF WATER) THRESHOLD ODOR NUMBER UNITED STATES ENVIORNMENTAL PROTECTION AGENCY CENTER FOR DISEASE CONTROL HOTLINE (1-800-426-4791) FOR THE WEB BROWSERS: www.pismobeach.org www.thinkh2onow.com The highest level of contaminant that is allowed in drinking water The level of contaminant in drinking water below which there is no known or expected risk to health. MCLGs are set by the United States Environmental Protection Agency and PHGs are set by the California Environmental Protection Agency The level of a disinfectant added for water treatment that may not be exceeded at the consumer's faucet • County Board of Supervisors http://slocounty.ca.gov/bos.html • The Office of Ground Water and Drinking at EPA • www.water.epa.gov/drink/index.cfm • American Water Works Association http://www.awwa.org The concentration of a contaminat that, if exceeded, triggers treatement or other requirements that a water system must follow The concentration of a contaminant that, if exceeded, triggers treatment of other requirement which a water system must follow A required process intended to reduce the level of a contaminant in drinking water State and Lopez Water Footnotes: LANGELIER INDEX; NONCORROSIVE = ANY POSITIVE VALUE, CORROSIVE = ANY NEGATIVE VALUE NO STANDARD COLONY FORMING UNITS PER MILLILITER NEPHELOMETRIC TURBIDITY UNIT MCLs for contaminants that affect health along with their monitoring and reporting requirements, and water treatment requirements. Primary MCLs are set as close to the PHGs (or MCLGs) as is economically and technologically feasible MCLs for contaminants to protect the taste, odor, or appearance of the drinking water. Contaminants with SDWSs do not affect health at the MCL levels The level of a disinfectant added for water treatment below which there is no known or expected risk to health. MRDLGs are set by the U.S. Environmental Protection Agency A sample was not collected for this contaminant Contaminant was not reported Contaminant is not detectable at testing limit Contaminant for which there is no established MCL Contaminant was not analyzed You can provide input regarding water quality decisions in your area. •The drinking water source assessment and protection program was completed in September 2002, both are on file at the Water Division. •The public can address concerns to the Public Works Water Division. Contact Brandon Shea at (805) 773-7054 •The City Council meets the first and third Tuesday of each month at City Hall. •Este informe contiene informacion muy importante sobre la calidad del agua que usted consume. Por favor de traducirlo, o hable con alguien que lo entiende bien.