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Tap water quality report

Sparks, NV

EPA monitoring detected 45 contaminants across the 2 water suppliers serving Sparks. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
442,035
people served
45
contaminants found
Nevada rankings Lead in Nevada PFAS in Nevada

What was found in Sparks's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
7800 µg/L 78%
of the EPA limit 10000 µg/L
 2/2 SYR4
Nitrate-Nitrite
7800 µg/L 78%
of the EPA limit 10000 µg/L
 2/2 SYR4
Fluoride
290 µg/L 7.2%
of the EPA limit 4000 µg/L
 2/2 SYR4
Barium
162 µg/L 8.1%
of the EPA limit 2000 µg/L
 2/2 SYR4
Lithium
100 µg/L
No EPA limit set
 1/2 UCMR-5
TTHM
75 µg/L 94%
of the EPA limit 80 µg/L
 1/2 SYR4
Chloroform
70 µg/L
No EPA limit set
 1/2 SYR4
Total Haloacetic Acids (HAA5)
59 µg/L 98%
of the EPA limit 60 µg/L
 1/2 SYR4
Cyanide
39 µg/L 20%
of the EPA limit 200 µg/L
 1/2 SYR4
Trichloroacetic Acid
37 µg/L
No EPA limit set
 1/2 SYR4
Copper
30 µg/L 2.3%
of the EPA limit 1300 µg/L
 2/2 SYR4
Chromium
27.7 µg/L 28%
of the EPA limit 100 µg/L
 1/2 SYR4
Dichloroacetic Acid
27 µg/L
No EPA limit set
 1/2 SYR4
Monobromoacetic Acid
19 µg/L
No EPA limit set
 1/2 SYR4
Arsenic
17.3 µg/L 173%
of the EPA limit, in the worst sample — 10 µg/L
 1/2 SYR4
Combined Uranium
15 µg/L 50%
of the EPA limit 30 µg/L
 2/2 SYR4
Bromodichloromethane
14 µg/L
No EPA limit set
 1/2 SYR4
Dibromochloromethane
12 µg/L
No EPA limit set
 1/2 SYR4
Gross Beta Particle Activity
7.9 pCi/L
No EPA limit set
 1/2 SYR4
Thallium, Total
7.9 µg/L 395%
of the EPA limit, in the worst sample — 2 µg/L
 1/2 SYR4
Bromoform
6.1 µg/L
No EPA limit set
 1/2 SYR4
Antimony, Total
6.08 µg/L 101%
of the EPA limit, in the worst sample — 6 µg/L
 1/2 SYR4
Gross Alpha, Excl. Radon And U
5.4 pCi/L 36%
of the EPA limit 15 pCi/L
 1/2 SYR4
Monochloroacetic Acid
4.7 µg/L
No EPA limit set
 1/2 SYR4
Tetrachloroethylene
4.21 µg/L 84%
of the EPA limit 5 µg/L
 1/2 SYR4
Combined Radium (-226 And -228)
4 pCi/L 80%
of the EPA limit 5 pCi/L
 1/2 SYR4
Dibromoacetic Acid
2.61 µg/L
No EPA limit set
 1/2 SYR4
Trichloroethylene
1.71 µg/L 34%
of the EPA limit 5 µg/L
 1/2 SYR4
Di(2-ethylhexyl) Phthalate
0.9400 µg/L 16%
of the EPA limit 6 µg/L
 1/2 SYR4
1,1-Dichloroethylene
0.6300 µg/L 9%
of the EPA limit 7 µg/L
 1/2 SYR4
Dalapon
0.4200 µg/L 0.2%
of the EPA limit 200 µg/L
 1/2 SYR4
Mercury
0.2620 µg/L 13%
of the EPA limit 2 µg/L
 1/2 SYR4
2,4-D
0.2300 µg/L 0.3%
of the EPA limit 70 µg/L
 1/2 SYR4
Benzo(A)Pyrene
0.1100 µg/L 55%
of the EPA limit 0.2000 µg/L
 1/2 SYR4
Hexachlorocyclopentadiene
0.0700 µg/L 0.1%
of the EPA limit 50 µg/L
 1/2 SYR4
PFOS
0.0200 µg/L
No EPA limit set
 1/2 UCMR-5
1,2-DIBROMO-3-CHLOROPROPANE
0.0190 µg/L 9.5%
of the EPA limit 0.2000 µg/L
 1/2 SYR4
PFHXS
0.0150 µg/L
No EPA limit set
 1/2 UCMR-5
Pfpea
0.0130 µg/L
No EPA limit set
 1/2 UCMR-5
Pfhxa
0.0120 µg/L
No EPA limit set
 1/2 UCMR-5
Pfba
0.0068 µg/L
No EPA limit set
 1/2 UCMR-5
PFBS
0.0057 µg/L
No EPA limit set
 1/2 UCMR-5
PFOA
0.0055 µg/L
No EPA limit set
 1/2 UCMR-5
Pfhpa
0.0039 µg/L
No EPA limit set
 1/2 UCMR-5
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 2/2 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Sparks

SupplierPopulation served
TRUCKEE MEADOWS WATER AUTHORITY 442,000
ALPINE MOBILE HOME PARK 35

Frequently asked questions about Sparks tap water

Is Sparks tap water safe to drink?

EPA testing detected 45 contaminants in the water serving Sparks. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Sparks?

2 public water suppliers report drinking-water monitoring for Sparks, Nevada to the EPA. Each is listed above with its population served.

What contaminants are in Sparks's water?

The contaminants EPA monitoring detected in Sparks include Nitrate, Nitrate-Nitrite, Fluoride, Barium, Lithium. The full list, with the highest level found and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.