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JUL-29-2014 09 : 10 FROM : FAR WEST LABORATORIE 209-869-2278 T0 : 2345864 P . 5/5 I FEE- FEEN Chemal or 1)ETEC tt4p OFC LevelANTS I Range of A PRTMAR��RINKTNGATE' WATER --- ic le R STANDARD 11. WIFE FE W ! Constituent Date Typical Source of (and reporting units) Date Detected Detections (MCLG) Contaminant -_. .. -_ 111 4 4 W IF - - --- -- -- .__...... ._..._.. _ . _.._ .._ _ . . _ Runoff and leaching from Nitrate as NO3 fertill=r use; leaching from s' (Ppm) 09/09/13 19 45 45 septic tanks, sewage; erosion of --- --- ... . . . . . - .. ..... ..... ......... ..... . _. _ . . _._.._ ._ ..._. _.. . ---.. . . . . _. ._ . natural deposits Erosion of natural deposits; runoff Arsenic (ppb) 09/04/1.2 9 10 0.004 from orchards; glass and --... . _. . .E electronics production wastes Discharge of oil drilling wastes Ra.rium (ppm) 09/04/12 0. 1 1 2 and from metal .refineries; erosion of natural deposits TABLE 4 - DETECTION OF CONTAMINANTS WITH A SFC0JSPAW DRINIONG WATER STANDARD Chemical or Sample Level Range of PTIG Constituent P MCL Typical Source of (and repotting units) Date Detected Detections (MC.LG) Contaminant Total DissolvedRunoffAcaebing from natural Solids (ppm) 2013 291 264 - 343 1000 N/A deposits _ . . F 1 ._ . __ FEW FEW — *Any violation ofan MCL or AT is asterisked. Additional information regarding the violation is provided below. Additional General Information On Drinking Water All 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 the water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the USEPA's Safe Drinking Water IIotline (1 -$004264791 ). Some people maybe more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as .persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with ..MV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. While your drinking water meets the current EPA standard for arsenic, it does contain low levels of arsenic. The arsenic standard balances the current understanding of arschic's possible health cMrus against the cost of removing arsenic from drinking water. The U.S. Environmental Protection Agency continues to research the health effects of low levels of arsenic, which is a mineral known to cause cancer in humans at high concentrations and is linked to other health effects such as skin damage and circulatory problems. Vulnerability Assessment Summary A source water assessment was conducted for the main well of the French Camp RV Park and Golf Course water systen, in May of 2002. The source is considered most vulnerable to the following activities not associated with any detected contaminants: chemical/petroleum processing/storage, injection wells/dry wells/sumps, known contaminant plumes, landfills/dumps, mining operations - historic, septic systems IF, high density, underground injection of commercial/industrial discharges, and underground storage tanks - confirmed leaking tanks. The source is considered vulnerable to activities located near the drinking water source. For more infonnation regarding the assessment summary, contact: Steve Guaraglia at: (209) 5982444. SINS OR Form -ReWead April 2000