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.
6
health-based violations
8
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 1999-01-01 → 1999-12-31 |
| MCL | Health-based | Resolved | 1999-01-01 → 1999-12-31 |
| TT | Health-based | Resolved | 1993-06-01 → 1995-12-31 |
| TT | Health-based | Resolved | 1993-06-01 → 1995-12-31 |
| MCL | Health-based | Resolved | 1992-09-01 → 1992-09-30 |
| MCL | Health-based | Resolved | 1992-09-01 → 1992-09-30 |
| MR | Monitoring | Resolved | 1999-04-01 → 1999-06-30 |
| MR | Monitoring | Resolved | 1999-04-01 → 1999-06-30 |
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 95th percentile of this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 10100 µg/L 101% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 13200 µg/L | 6752/6784 | SYR4 | 2012–2019 |
| Trichloroethylene | 4.6005 µg/L 92% of the EPA limit 5 µg/L
worst single sample: 31 µg/L | 1418/2985 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 3.9955 µg/L 80% of the EPA limit 5 µg/L
worst single sample: 13.8 µg/L | 1084/2983 | SYR4 | 2012–2019 |
| Carbon Tetrachloride | 2.7985 µg/L 56% of the EPA limit 5 µg/L
worst single sample: 4.01 µg/L | 764/2984 | SYR4 | 2012–2019 |
| TTHM | 51.64 µg/L 65% of the EPA limit 80 µg/L
worst single sample: 118 µg/L | 755/2115 | SYR4 | 2012–2019 |
| Chloroform | 17.765 µg/L No EPA limit set
worst single sample: 44.5 µg/L | 728/2117 | SYR4 | 2012–2019 |
| Dibromochloromethane | 18.1 µg/L No EPA limit set
worst single sample: 31 µg/L | 701/2119 | SYR4 | 2012–2019 |
| Bromodichloromethane | 16.1 µg/L No EPA limit set
worst single sample: 37.9 µg/L | 699/2119 | SYR4 | 2012–2019 |
| Bromoform | 7.182 µg/L No EPA limit set
worst single sample: 18.2 µg/L | 643/2122 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 22 µg/L 37% of the EPA limit 60 µg/L
worst single sample: 34 µg/L | 215/264 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 5.83 µg/L No EPA limit set
worst single sample: 9 µg/L | 208/240 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 12 µg/L No EPA limit set
worst single sample: 17 µg/L | 199/240 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 10.65 µg/L 15% of the EPA limit 70 µg/L
worst single sample: 20.7 µg/L | 193/2984 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 7.4 µg/L No EPA limit set
worst single sample: 11 µg/L | 170/240 | SYR4 | 2012–2019 |
| Fluoride | 1376 µg/L 34% of the EPA limit 4000 µg/L
worst single sample: 1450 µg/L | 77/77 | SYR4 | 2012–2019 |
| Combined Uranium | 21.9775 µg/L 73% of the EPA limit 30 µg/L
worst single sample: 26.82 µg/L | 46/47 | SYR4 | 2012–2018 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 35/35 | LCR | 2023 |
| Barium | 163.5 µg/L 8.2% of the EPA limit 2000 µg/L
worst single sample: 170 µg/L | 14/58 | SYR4 | 2012–2019 |
| Lithium | 64.2 µg/L No EPA limit set | 10/14 | UCMR-5 | 2024 |
| Monobromoacetic Acid | 1.265 µg/L No EPA limit set
worst single sample: 1.3 µg/L | 8/240 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 3.13 µg/L No EPA limit set
worst single sample: 3.2 µg/L | 8/240 | SYR4 | 2012–2019 |
| Arsenic | 2.88 µg/L 29% of the EPA limit 10 µg/L
worst single sample: 3 µg/L | 7/58 | SYR4 | 2012–2019 |
| trans-1,2-Dichloroethylene | 3.648 µg/L 3.6% of the EPA limit 100 µg/L
worst single sample: 4.2 µg/L | 4/2984 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 0.9020 µg/L 13% of the EPA limit 7 µg/L
worst single sample: 0.9100 µg/L | 3/2984 | SYR4 | 2012–2019 |
| Dichloromethane | 0.5400 µg/L 11% of the EPA limit 5 µg/L | 1/2984 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 3.7 µg/L 62% of the EPA limit 6 µg/L | 1/81 | SYR4 | 2012–2018 |
| Nitrate-Nitrite | 1600 µg/L 16% of the EPA limit 10000 µg/L | 1/3 | SYR4 | 2016 |
| Toluene | 0.6000 µg/L 0.1% of the EPA limit 1000 µg/L | 1/2985 | SYR4 | 2012–2019 |
84 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-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)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranChlordaneChromiumDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, TotalO-DichlorobenzeneP-Dichlorobenzene
Utility contact
Frequently asked questions about Pasadena Water and Power
Is Pasadena Water and Power tap water safe to drink?
EPA monitoring detected 28 contaminants in Pasadena Water and Power'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 Pasadena Water and Power's water?
EPA monitoring detected Nitrate, Trichloroethylene, Tetrachloroethylene, Carbon Tetrachloride, TTHM, and others. The full list with the level and data source for each is above.
How many people does Pasadena Water and Power serve?
Pasadena Water and Power reports serving 164,344 people in California, per its EPA record.
Has Pasadena Water and Power had any water quality violations?
The EPA has 8 violations on file for Pasadena Water and Power, of which 6 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.