E. coli (federal Revised Total Coliform Rule) TT TT n/a Human and animal fecal waste E. coli are bacteria presence indicates that the water may be contaminated with human or animal wastes. Human pathogens in these wastes can cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a greater health risk for infants, young children, the elderly, and people with severely-compromised immune systems. Fecal Indicator E. coli (Ground Water Rule) 0 - 0 (0) Human and animal fecal waste Fecal coliforms and E. coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Microbes in these wastes can cause effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a special health risk for infants, young children, some of the elderly, and people with severely compromised immune systems. Indicators (enterococci or coliphage) (Ground Water Rule) TT - TT n/a Human and animal fecal waste Fecal indicators are microbes whose presence indicates that the water may be contaminated with human or animal wastes. Microbes in these wastes can cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a special health risk for infants, young children, some of the elderly, and people with severely compromised immune systems. Turbidity TT - TT n/a Soil runoff Turbidity has no health effects. However, high levels of turbidity can interfere with disinfection and provide a medium for microbial growth. Turbidity may indicate the presence of disease-causing organisms. These organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea, cramps, diarrhea, and associated headaches. Giardia lamblia Viruses Heterotrophic count bacteria Legionella Cryptosporidium Surface water treatment = TT HPC = n/a; Others = (0) Naturally present in the environment Inadequately treated water may contain disease-causing organisms. These organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea, cramps, diarrhea, and associated headaches.
runoff from livestock lots (feed additive) Thallium (ppb) 0.002 1000 2 0.1 Leaching from sites; discharge from electronics, glass, and drug factories Some people who drink water containing thallium in excess of the MCL over many years may experience hair loss, changes in their blood, or kidney, intestinal, or liver problems. Synthetic Organic Contaminants including Pesticides and Herbicides 2,4-D (ppb) 0.07 1000 70 20 Runoff from herbicide used on row crops, range land, lawns, and aquatic weeds Some people who use water containing the weed killer in excess of the MCL over many years may experience kidney, liver, or adrenal gland problems. 2,4,5-TP [Silvex] (ppb) 0.05 1000 50 3 Residue of banned herbicide Some people who drink water containing Silvex in excess of the MCL over many years may experience liver problems. Acrylamide TT - TT (0) Added to water during sewage/wastewater treatment Some people who drink water containing high levels of acrylamide over a long period of time may experience nervous system or blood problems, and may have an increased risk of getting cancer. Alachlor (ppb) 0.002 1000 2 4 Runoff from herbicide used on row crops Some people who use water containing alachlor in excess of the MCL over many years may experience eye, liver, kidney, or spleen problems, or experience anemia, and may have an increased risk of getting cancer. Atrazine (ppb) 0.001 1000 1 0.15 Runoff from herbicide used on row crops and along railroad and highway Some people who use containing atrazine in excess of the MCL over many years may experience cardiovascular system problems or reproductive difficulties. Bentazon (ppb) 0.018 1000 18 200 Runoff/leaching from herbicide used on beans, peppers, Some people who drink water containing bentazon in excess of the MCL over many years may experience prostate and gastrointestinal effects.
soybeans, cotton, vineyards, tomatoes, and tree fruit Dinoseb (ppb) 0.007 1000 7 14 Runoff from herbicide used on soybeans, vegetables, and fruits Some people who drink water containing dinoseb in excess of the MCL over many years may experience reproductive difficulties. Dioxin [2,3,7,8-TCDD] (ppq) 30 0.05 Emissions from waste incineration and other combustion; discharge from chemical factories Some people who use containing dioxin in excess of the MCL over many years may experience reproductive difficulties and may have an increased risk of getting cancer. Diquat (ppb) 0.02 1000 20 6 Runoff from herbicide use for terrestrial and aquatic weeds Some people who drink water containing diquat in excess of the MCL over many years may get cataracts. Endothall (ppb) 0.1 1000 100 94 Runoff from herbicide use for terrestrial and aquatic weeds; defoliant Some people who drink water containing endothall in excess of the MCL over many years may experience stomach or intestinal problems. Endrin (ppb) 0.002 1000 2 0.3 Residue of banned insecticide and rodenticide Some people who drink water containing endrin in excess of the MCL over many years may experience liver problems. Epichlorohydrin TT - TT (0) Discharge from industrial chemical factories; impurity of some water treatment chemicals Some people who drink water containing high levels of epichlorohydrin over a long period of time may experience stomach problems, and may have an increased risk of getting cancer. Ethylene dibromide [EDB] (ppt) 0.00005 1,000,000 50 10 Discharge from petroleum refineries; underground gas Some people who use water containing ethylene dibromide in excess of the MCL over many years may experience liver,
groundwater contamination Dichloromethane (ppb) 0.005 1000 5 4 Discharge from pharmaceutical and chemical factories; insecticide Some people who drink water containing dichloromethane in excess of the MCL over many years may experience liver problems and may have an increased risk of getting cancer. 1,2-Dichloropropane (ppb) 0.005 1000 5 0.5 Discharge from industrial chemical factories; primary component of some fumigants Some people who use water containing 1,2-dichloropropane in excess of the MCL over many years may have an increased risk of getting cancer. 1,3-Dichloropropene (ppt) 0.0005 1,000,000 500 200 Runoff/leaching from nematocide used on croplands Some people who use water containing 1,3-dichloropropene in excess of the MCL over many years may have an increased risk of getting cancer. Ethylbenzene (ppb) 0.3 1000 300 300 Discharge from petroleum refineries; industrial chemical factories Some people who use water containing ethylbenzene in excess of the MCL over many years may experience liver or kidney problems. Methyl-tert-butyl ether (ppb) 0.013 1000 13 13 Leaking underground storage discharge from petroleum and chemical factories Some people who use water containing methyl-tert-butyl ether in excess of the MCL over many years may have an increased risk of getting cancer. Monochlorobenzene (ppb) 0.07 1000 70 70 Discharge from industrial and agricultural chemical factories and dry cleaning facilities Some people who use water containing monochlorobenzene in excess of the MCL over many years may experience liver or kidney problems. Styrene (ppb) 0.1 1000 100 0.5 Discharge from rubber and plastic factories; leaching from landfills Some people who drink water containing styrene in excess of the MCL over many years may experience liver, kidney, or circulatory system problems.
Xylenes MCL 1.750 ppm MCL in CCR units 1.750 ppm Source 2017 Results (ppm) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Average Well 1 1 1 2 ND 1 Well 2 Not sampled Not sampled Not sampled 2 2 Well 3 Not sampled 1 2 ND 1 All wells 1.3 Example CCR Table Excerpt Contaminant (CCR units) MCL PHG Average Range Sample Date Violation Typical Source Xylenes (ppm) 1.750 1.8 1.3 ND - 2 2017 No Discharge from petroleum and chemical factories; fuel solvent Note: For “Average”, use the average of the individual sampling point averages. Example that demonstrates reporting of multiple sampling and multiple sampling dates (compliance: running annual average on individual source basis) [section 64481(d)(2)(D)2.A.]: Example Data – Dalapon Monitoring Dalapon MCL 0.2 ppm MCL in CCR units 200 ppb Source 2017 Results (ppb) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Sample Result Running Average* Sample Result Running Average* Sample Result Running Average* Sample Result Running Average Well 1 74 42 60 47 28 50 43 52 Well 2 36 26 12 21 6 17 9 16 * Running averages are based on data from previous quarters not reported on this table. Example CCR Table Excerpt Contaminant (CCR units) MCL PHG Average Range Sample Date Violation Typical Source Dalapon (ppb) 200 790 52 6 - 74 2017 No Runoff from herbicide used on rights-of-way, and crops and landscape maintenance Note: For “Average”, use the highest of the running annual average values for the year. For “Range”, use the minimum and maximum of the sample results for all locations, all dates.
Uncovered and Untreated Finished Water Reservoir The Alma finished water reservoir is uncovered and the discharge is not treated. We were required to address this situation by [date]. 17 months We have hired an engineering firm to design a cover for the tank. We intend to have the tank covered by [date]. Inadequately protected water may contain organisms. These organisms can cause symptoms such as diarrhea, nausea, cramps, and associated headaches. Determine and Report Bin Classification conducting our source water monitoring for Cryptosporidium, we were required to determine and report our Bin Classification by [date]. 1 We have since determined our bin classification and reported this to the SWRCB. Inadequately treated water may contain disease-causing organisms. These organisms can cause symptoms such as diarrhea, nausea, cramps, and associated headaches. Provide or Install an Additional Level of Treatment on our bin classification, we were required to provide or install an additional level of treatment by [date]. 6 months We hired an engineering firm to prepare a preliminary engineering report. The report listed treatment alternatives. We selected one of the alternatives and are in the process of constructing it. We anticipate that it will be completed by [date]. Inadequately treated may contain disease-causing organisms. These organisms can cause symptoms such as diarrhea, nausea, cramps, and associated headaches. Example that demonstrates reporting of GWR special notice for indicator-positive groundwater source sample: Example Data – E. coli This system was triggered to conduct source water monitoring after a TCR positive sample in December 2017. In this example, both the distribution and the source samples were positive for E. coli. The system took five additional source samples and one was positive. Below is an example of reporting for both the TCR violation and the GWR special notice. The required special notice language for fecal indicator-positive samples must be provided in the CCR. For this example, we have included it as footnote to the table. Example CCR Table Excerpt – E. coli