Fort Defiance-Window Rock-St Michaels NTUA
AZ · PWS ID NN0403000 · Community water system
101
contaminants tested
16
detected
12,869
people served
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 154 UG/L | 108/116 | SYR4 | 2012–2019 |
| Nitrate | 1200 UG/L | 88/206 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 30.7 UG/L | 71/116 | SYR4 | 2012–2019 |
| Barium | 284 UG/L | 18/25 | SYR4 | 2012–2019 |
| Fluoride | 570 UG/L | 18/24 | SYR4 | 2012–2019 |
| Nitrite | 490 UG/L | 15/103 | SYR4 | 2012–2019 |
| Combined Uranium | 38.7 UG/L | 14/15 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0140 mg/L | 14/14 | LCR | 2025 |
| lithium | 138 ug/L | 12/14 | UCMR-5 | 2025 |
| Chromium | 10 UG/L | 11/24 | SYR4 | 2012–2019 |
| Selenium | 15 UG/L | 9/22 | SYR4 | 2012–2019 |
| Arsenic | 7.8 UG/L | 8/22 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 3.2 PCI/L | 8/15 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 1.8 PCI/L | 7/15 | SYR4 | 2012–2019 |
| Beryllium, Total | 0.2000 UG/L | 5/25 | SYR4 | 2012–2019 |
| Mercury | 0.5000 UG/L | 5/16 | SYR4 | 2013–2019 |
85 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMethoxychlorNEtFOSAANFDHANMeFOSAAOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
Fort Defiance, Window Rock, St. Michaels