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Las Vegas Valley Water District Water Quality Summary

Substance Average Value MCL Units
ALKALINITY, as HCO3 138 N/A ppm
ALPHA EMITTERS 2.8 15 pCi/L
ALUMINUM <5.0 200 ppb (1)
ANTIMONY <0.4 6 ppb
ARSENIC 1.7 10 ppb
BARIUM 0.1 2 ppm
BERYLLIUM <0.4 4 ppb
BROMATE 4.3 10 ppb
BROMIDE <0.02 N/A ppm
CADMIUM <0.5 5 ppb
CALCIUM 79 N/A ppm
CHLORIDE 104 400 ppm (1)
CHLORINE RESIDUAL, FREE 1.0 4.0 (2) ppm
CHROMIUM, TOTAL <3.0 100 ppb
COLIFORM, TOTAL 0 5 percent positive per month
COLOR, TRUE 1 15 PCU (1)
CONDUCTIVITY 996 N/A µS/cm
COPPER 0.005 1.0 ppm (1)
CYANIDE, FREE <25 200 ppb
FLUORIDE (3) 0.65 4.0
2		 ppm
ppm (1)
HALOACETIC ACIDS (Total Regulated) 35 60 ppb
HARDNESS, TOTAL 304
18		 N/A
 		 ppm
gpg
IRON <50 600 ppb (1)
LEAD <0.3 N/A ppb
MAGNESIUM 26 150 ppm (1)
MANGANESE <5.0 100 ppb (1)
MBAS <0.1 0.5 ppm (1)
MERCURY <0.2 2 ppb
MOLYBDENUM <5.0 N/A ppb
NICKEL

<5.0

 N/A ppb
NITRATE (as NITROGEN) 0.60 10 ppm
NITRITE (as NITROGEN) <0.02 1 ppm
ODOR 1 3 TON (1)
ORTHO PHOSPHATE, as PO4 92 N/A ppb
PERCHLORATE 1.2 N/A ppb
pH 7.8 6.5 - 8.5 pH units (1)
POTASSIUM 5.6 N/A ppm
RADIUM 226 AND RADIUM 228 (Combined) <0.4 5 pCi/L
SATURATION INDEX 0.4 N/A N/A
SELENIUM 2.5 50 ppb
SILICA 7.6 N/A ppm
SILVER <5.0 100 ppb (1)
SODIUM 98 N/A ppm (4)
SULFATE 235 500 ppm (1)
TEMPERATURE 19 N/A deg C
THALLIUM <0.2 2 ppb
TOTAL DISSOLVED SOLIDS 642 1000 ppm (1)
TRIHALOMETHANES (Total) 66 80 ppb
TURBIDITY 0.4 N/A NTU (4)
URANIUM 4.3 30 ppb
VANADIUM <5.0 N/A ppb
ZINC 0.1 5 ppm (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 <0.1 3 ppb
BENZENE <0.5 5 ppb
CARBOFURAN <0.5 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 <0.1 1 ppb
HEXACHLOROCYCLOPENTADIENE <0.1 50 ppb
LINDANE <0.02 0.2 ppb
METHOXYCHLOR <0.1 40 ppb
MTBE <0.5 N/A ppb
OXAMYL (VYDATE) <0.5 200 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 <0.07 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

Footnotes:

  1. State of Nevada Secondary Standard
  2. MRDL
  3. Fluoridation Started March 2000
  4. Treatment technique requirement

Terms:

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

ppb - parts per billion

ppm - parts per million

ppt - parts per trillion

µS/cm - Micro Siemens per centimeter

PCU - Platinum Cobalt Units

gpg - grains per gallon

TON - threshold odor number

" <" - less than