SOUTH TAHOE PUD - MAIN
CA · PWS ID CA0910002 · Community water system
108
contaminants tested
18
detected
100,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxA | 0.0163 ug/L | 5/27 | 2025 |
| PFPeA | 0.0224 ug/L | 5/27 | 2025 |
| PFHpA | 0.0065 ug/L | 3/27 | 2025 |
| PFOA | 0.0061 ug/L | 3/27 | 2025 |
| PFBS | 0.0037 ug/L | 2/27 | 2025 |
| PFHxS | 0.0058 ug/L | 2/27 | 2025 |
| PFOS | 0.0052 ug/L | 2/27 | 2025 |
| PFBA | 0.0053 ug/L | 1/27 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 901.966 UG/L | 244/244 | SYR4 | 2012–2019 |
| Arsenic | 14 UG/L | 130/252 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 911000 UG/L | 122/122 | SYR4 | 2012–2019 |
| Combined Uranium | 26.7902 UG/L | 107/111 | SYR4 | 2012–2019 |
| Fluoride | 613 UG/L | 76/128 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0083 mg/L | 40/40 | LCR | 2023 |
| Tetrachloroethylene | 0.9000 UG/L | 5/257 | SYR4 | 2012–2019 |
| 1,2-Dichloroethane | 0.7000 UG/L | 3/257 | SYR4 | 2012–2019 |
| lithium | 26.3 ug/L | 2/25 | UCMR-5 | 2025 |
| Nitrite | 68 UG/L | 1/122 | SYR4 | 2012–2019 |
90 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABariumBenzeneBenzo(a)pyreneBeryllium, TotalBromateBromodichloromethaneBromoformCHLOROBENZENECOPPER, FREECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChloroformChromiumCombined Radium (-226 and -228)DICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDibromochloromethaneDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOLeadMercuryMethoxychlorNEtFOSAANFDHANMeFOSAAOXAMYLPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTTHMThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene