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Tap water quality report

Lightning W

EPA monitoring tested this supplier for 82 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

82
contaminants tested
8
detected
163
people served
4
health-based violations
Nevada rankingsLead in NevadaPFAS in Nevada
Water source
Ground water
Ownership
Local government
Counties served
Washoe

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
97
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2005-01-01 → 2005-12-31
MCL Health-based Resolved 2005-01-01 → 2005-12-31
MCL Health-based Resolved 2005-01-01 → 2005-12-31
MCL Health-based Resolved 2005-01-01 → 2005-12-31
Other Monitoring Resolved 2016-07-01
Other Monitoring Resolved 2016-07-01
Other Monitoring Resolved 2016-07-01
MR Monitoring Resolved 2010-01-01 → 2010-03-31
MR Monitoring Resolved 2010-01-01 → 2010-03-31
MR Monitoring Resolved 2010-01-01 → 2010-03-31

Other contaminants detected

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0011 mg/L 7.3%
of the EPA limit 0.0150 mg/L
 24/24 LCR 2025
Copper
680 µg/L 52%
of the EPA limit 1300 µg/L
 16/22 SYR4 2012–2019
Nitrate
370 µg/L 3.7%
of the EPA limit 10000 µg/L
 12/36 SYR4 2012–2019
Barium
110 µg/L 5.5%
of the EPA limit 2000 µg/L
 3/3 SYR4 2013–2017
Combined Uranium
87 µg/L 290%
of the EPA limit, in the worst sample — 30 µg/L
 3/36 SYR4 2012–2019
Nitrate-Nitrite
320 µg/L 3.2%
of the EPA limit 10000 µg/L
 2/7 SYR4 2012–2019
Arsenic
1.09 µg/L 11%
of the EPA limit 10 µg/L
 1/8 SYR4 2012–2019
Lead
1 µg/L 6.7%
of the EPA limit 15 µg/L
 1/19 SYR4 2013–2019
74 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BURGESS, KELLI
Phone
775-834-8117
Email
kburgess@tmwa.com

Frequently asked questions about Lightning W

Is Lightning W tap water safe to drink?

EPA monitoring detected 8 contaminants in Lightning W's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Lightning W's water?

EPA monitoring detected Lead, Copper, Nitrate, Barium, Combined Uranium, and others. The full list with the level and data source for each is above.

How many people does Lightning W serve?

Lightning W reports serving 163 people in Nevada, per its EPA record.

Has Lightning W had any water quality violations?

The EPA has 97 violations on file for Lightning W, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.