TRUCKEE MEADOWS WATER AUTHORITY
NV · PWS ID NV0000190 · Community water system
114
contaminants tested
45
detected
442,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0150 ug/L | 18/142 | 2025 |
| PFBS | 0.0057 ug/L | 9/142 | 2025 |
| PFHxA | 0.0120 ug/L | 7/142 | 2025 |
| PFOS | 0.0200 ug/L | 6/142 | 2025 |
| PFPeA | 0.0130 ug/L | 6/142 | 2025 |
| PFOA | 0.0055 ug/L | 3/142 | 2025 |
| PFBA | 0.0068 ug/L | 1/142 | 2025 |
| PFHpA | 0.0039 ug/L | 1/142 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Arsenic | 17.3 UG/L | 669/963 | SYR4 | 2012–2019 |
| Nitrate | 7800 UG/L | 480/688 | SYR4 | 2012–2019 |
| TTHM | 75 UG/L | 348/359 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 59 UG/L | 346/358 | SYR4 | 2012–2019 |
| Chloroform | 70 UG/L | 299/310 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 37 UG/L | 298/310 | SYR4 | 2012–2019 |
| Bromodichloromethane | 14 UG/L | 296/310 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 27 UG/L | 290/310 | SYR4 | 2012–2019 |
| Combined Uranium | 15 UG/L | 105/141 | SYR4 | 2012–2019 |
| Barium | 162 UG/L | 104/112 | SYR4 | 2012–2019 |
| Dibromochloromethane | 12 UG/L | 92/310 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 7800 UG/L | 92/143 | SYR4 | 2012–2019 |
| Antimony, Total | 6.08 UG/L | 49/220 | SYR4 | 2012–2019 |
| Bromoform | 6.1 UG/L | 37/310 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 4.21 UG/L | 33/291 | SYR4 | 2012–2019 |
| Chromium | 27.7 UG/L | 23/112 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0090 mg/L | 23/23 | LCR | 2025 |
| Dibromoacetic acid | 2.61 UG/L | 22/310 | SYR4 | 2012–2019 |
| Trichloroethylene | 1.71 UG/L | 17/290 | SYR4 | 2012–2019 |
| lithium | 100 ug/L | 15/142 | UCMR-5 | 2025 |
| Monochloroacetic acid | 4.7 UG/L | 9/310 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 19 UG/L | 8/310 | SYR4 | 2012–2019 |
| Thallium, Total | 7.9 UG/L | 7/131 | SYR4 | 2012–2019 |
| COPPER, FREE | 10 UG/L | 6/131 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 7.9 PCI/L | 6/19 | SYR4 | 2012–2015 |
| Combined Radium (-226 and -228) | 4 PCI/L | 5/94 | SYR4 | 2012–2019 |
| Fluoride | 290 UG/L | 5/159 | SYR4 | 2012–2019 |
| 2,4-D | 0.2300 UG/L | 4/243 | SYR4 | 2012–2019 |
| Mercury | 0.2620 UG/L | 4/112 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 0.6300 UG/L | 3/290 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 5.4 PCI/L | 3/20 | SYR4 | 2012–2018 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0190 UG/L | 2/243 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) phthalate | 0.9400 UG/L | 2/244 | SYR4 | 2012–2019 |
| Hexachlorocyclopentadiene | 0.0700 UG/L | 2/241 | SYR4 | 2012–2019 |
| Benzo(a)pyrene | 0.1100 UG/L | 1/242 | SYR4 | 2012–2019 |
| CYANIDE | 39 UG/L | 1/111 | SYR4 | 2012–2019 |
| Dalapon | 0.4200 UG/L | 1/240 | SYR4 | 2012–2019 |
69 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAsbestosAtrazineBHC-GAMMABenzeneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDi(2-ethylhexyl) adipateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideLASSOLeadMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
RENOSPARKS