Searchlight 2022 Water Quality Summary - Well S-2

Substance	Average Value	MCL	Units
ALKALINITY, as HCO3	156	N/A	ppm
ALPHA PARTICLES	N/A	15	pCi/L
ALUMINUM	<5	200	ppb ⁽¹⁾
ANTIMONY	<0.4	6	ppb
ARSENIC	4	10	ppb
BARIUM	<0.005	2	ppm
BERYLLIUM	<0.4	4	ppb
BROMIDE	0.06	N/A	ppm
CADMIUM	<0.5	5	ppb
CALCIUM	10	N/A	ppm
CHLORIDE	20	400	ppm ⁽¹⁾
CHLORINE RESIDUAL (Dist. System)	0.8	4.0 ⁽²⁾	ppm
CHROMIUM	43	100	ppb
COLIFORM, TOTAL	<1	≤1	number samples positive per month
COLOR, TRUE	<1	15	PCU ⁽¹⁾
CONDUCTIVITY	448	N/A	µS/cm
COPPER	<0.005	1.0	ppm ⁽¹⁾
CYANIDE	<25	200	ppb
FLUORIDE	1.0	4.0 2.0	ppm ppm ⁽¹⁾
HALOACETIC ACIDS (Total Regulated)	2	60	ppb
HARDNESS	49 3	N/A	ppm gpg
IRON	<50	600	ppb ⁽¹⁾
LEAD	<0.3	N/A	ppb
MAGNESIUM	6	150	ppm ⁽¹⁾
MANGANESE	<5	100	ppb ⁽¹⁾
MBAS	<100	500	ppb ⁽¹⁾
MERCURY	<0.2	2	ppb
MOLYBDENUM	<5	N/A	ppb
NICKEL	<5	N/A	ppb
NITRATE (as NITROGEN)	3.6	10	ppm
NITRITE (as NITROGEN)	<0.02	1	ppm
ODOR	1	3	TON ⁽¹⁾
pH	8.3	6.5 - 8.5	pH units ⁽¹⁾
POTASSIUM	3	N/A	ppm
RADIUM 226 AND RADIUM 228 (Combined)	N/A	5	pCi/L
SATURATION INDEX	0.1	N/A	N/A
SELENIUM	1	50	ppb
SILICA	32	N/A	ppm
SILVER	<5	100	ppb ⁽¹⁾
SODIUM	70	N/A	ppm ⁽³⁾
SULFATE	23	500	ppm ⁽¹⁾
TEMPERATURE	24.7	N/A	deg C
THALLIUM	<0.2	2	ppb
TOTAL DISSOLVED SOLIDS	273	1000	ppm ⁽¹⁾
TRIHALOMETHANES (Total)	25	80	ppb
TURBIDITY	0.14	N/A	NTU
URANIUM	8	30	ppb
VANADIUM	0.02	N/A	ppb
ZINC	<5	5000	ppb ⁽¹⁾


Substance	Average Value	MCL	Units
1,2,4-TRICHLOROBENZENE	<0.5	70	ppb
1,1,1-TRICHLOROETHANE	<0.5	200	ppb
1,1,2-TRICHLOROETHANE	<0.5	5	ppb
1,1-DICHLOROETHYLENE	<0.5	7	ppb
1,2 DICHLOROPROPANE	<0.5	5	ppb
1,2 -DICHLOROBENZENE	<0.5	600	ppb
1,2-DICHLOROETHANE	<0.5	5	ppb
1,4 -DICHLOROBENZENE	<0.5	75	ppb
2,3,7,8-TCDD (DIOXIN)	<0.005	0.03	ppt
2,4-D	<0.1	70	ppb
ALACHLOR	<0.1	2	ppb
ATRAZINE	<0.05	3	ppb
BENZENE	<0.5	5	ppb
CARBOFURAN	<0.9	40	ppb
CARBON TETRACHLORIDE	<0.5	5	ppb
CHLORDANE	<0.1	2	ppb
CHLOROBENZENE	<0.5	100	ppb
cis-1,2-DICHLOROETHYLENE	<0.5	70	ppb
DALAPON	<1	200	ppb
DI (2-ETHYLHEXYL) ADIPATE	<0.6	400	ppb
DI (2-ETHYLHEXYL) PHTHALATE	<0.6	6	ppb
DIBROMOCHLOROPROPANE	<0.01	0.2	ppb
DICHLOROMETHANE	<0.5	5	ppb
DINOSEB	<0.2	7	ppb
DIQUAT	<0.4	20	ppb
ENDOTHALL	<5	100	ppb
ENDRIN	<0.01	2	ppb
ETHYLBENZENE	<0.5	700	ppb
ETHYLENE DIBROMIDE	<0.01	0.05	ppb
GLYPHOSATE	<6	700	ppb
HEPTACHLOR EPOXIDE	<0.01	0.2	ppb
HEPTACHLOR (H-34, HEPTOX)	<0.01	0.4	ppb
HEXACHLOROBENZENE	<0.05	1	ppb
HEXACHLOROCYCLOPENTADIENE	<0.05	50	ppb
LINDANE	<0.01	0.2	ppb
METHOXYCHLOR	<0.05	40	ppb
MTBE	<0.5	N/A	ppb
OXAMYL (VYDATE)	< 1	200	ppb
PAHs (benzo(a)pyrene)	<0.02	0.2	ppb
PENTACHLOROPHENOL	<0.04	1	ppb
PICLORAM	<0.1	500	ppb
POLYCHLORINATED BIPHENYLS	<0.1	0.5	ppb
SILVEX (2,4,5 - TP)	<0.2	50	ppb
SIMAZINE	<0.05	4	ppb
STYRENE	<0.5	100	ppb
TETRACHLOROETHYLENE	<0.5	5	ppb
TOLUENE	<0.5	1000	ppb
TOXAPHENE	<0.5	3	ppb
trans-1,2 DICHLOROETHYLENE	<0.5	100	ppb
TRICHLOROETHYLENE	<0.5	5	ppb
VINYL CHLORIDE	<0.5	2	ppb
XYLENES	<0.5	10,000	ppb

"<" - less than

µS/cm - Micro Siemens per centimeter

gpg - grains per gallon

MCL - Maximum Contaminant Level Set by EPA

MRDL - Maximum Residual Disinfectant Level

N/A - Not applicable, No Standard Set

NTU - Nephelometric Turbidity Unit

pCi/L - picocuries per liter

PCU - Platinum Cobalt Units

ppb - parts per billion

ppm - parts per million

TON - threshold odor number