PORTSMOUTH WATER WORKS
NH · PWS ID NH1951010 · Community water system
109
contaminants tested
29
detected
33,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxA | 0.0060 ug/L | 6/18 | 2024 |
| PFPeA | 0.0070 ug/L | 6/18 | 2024 |
| PFBS | 0.0090 ug/L | 5/18 | 2024 |
| PFOA | 0.0070 ug/L | 5/18 | 2024 |
| PFHxS | 0.0050 ug/L | 3/18 | 2024 |
| PFOS | 0.0050 ug/L | 3/18 | 2024 |
| PFBA | 0.0050 ug/L | 1/18 | 2024 |
| PFHpA | 0.0030 ug/L | 1/18 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| COPPER, FREE | 362 UG/L | 199/201 | SYR4 | 2016–2019 |
| Nitrate | 7500 UG/L | 106/116 | SYR4 | 2014–2019 |
| Chloroform | 94 UG/L | 97/129 | SYR4 | 2014–2019 |
| TTHM | 109 UG/L | 91/99 | SYR4 | 2014–2019 |
| Bromodichloromethane | 14 UG/L | 90/129 | SYR4 | 2014–2019 |
| Total Haloacetic Acids (HAA5) | 75 UG/L | 88/88 | SYR4 | 2014–2019 |
| Trichloroacetic Acid | 46 UG/L | 84/84 | SYR4 | 2014–2019 |
| Dichloroacetic Acid | 28.072 UG/L | 82/84 | SYR4 | 2014–2019 |
| Dibromochloromethane | 2.8 UG/L | 80/129 | SYR4 | 2014–2019 |
| Lead | 143.986 UG/L | 30/187 | SYR4 | 2016–2019 |
| Nitrate-Nitrite | 7500 UG/L | 27/29 | SYR4 | 2014–2016 |
| LEAD SUMMARY | 0.0470 mg/L | 18/18 | LCR | 2024 |
| Barium | 22.4 UG/L | 14/15 | SYR4 | 2016–2019 |
| Chromium | 10.3 UG/L | 4/15 | SYR4 | 2016–2019 |
| Combined Uranium | 1.6 UG/L | 4/12 | SYR4 | 2016–2019 |
| Gross Alpha, Excl. Radon and U | 1 PCI/L | 4/10 | SYR4 | 2016–2018 |
| Monochloroacetic acid | 10.734 UG/L | 4/84 | SYR4 | 2014–2019 |
| Arsenic | 1.5 UG/L | 2/15 | SYR4 | 2016–2019 |
| Combined Radium (-226 and -228) | 2 PCI/L | 2/11 | SYR4 | 2016–2018 |
| Fluoride | 560 UG/L | 2/15 | SYR4 | 2016–2019 |
| lithium | 10 ug/L | 2/18 | UCMR-5 | 2024 |
80 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalBromoformCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDibromoacetic acidDinosebDiquatETHYLENE DIBROMIDEEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
PORTSMOUTH