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Portland Water Department

EPA monitoring tested this supplier for 106 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

106
contaminants tested
13
detected
5,010
people served
24
health-based violations
Connecticut rankingsLead in ConnecticutPFAS in Connecticut
Water source
SWP
Ownership
Local government
Counties served
Middlesex

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.

24
health-based violations
47
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2008-07-01 → 2008-07-31
MCL Health-based Resolved 2008-07-01 → 2008-07-31
MCL Health-based Resolved 2008-07-01 → 2008-07-31
MCL Health-based Resolved 2008-07-01 → 2008-07-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2000-06-01 → 2000-06-30
MCL Health-based Resolved 2000-06-01 → 2000-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0033 µg/L 3/4 2023
Pfpea 0.0036 µg/L 3/4 2023

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
371 µg/L 29%
of the EPA limit 1300 µg/L
worst single sample: 640 µg/L
60/60 SYR4 2013–2019
TTHM
59.02 µg/L 74%
of the EPA limit 80 µg/L
worst single sample: 66.5 µg/L
57/57 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
35.975 µg/L 60%
of the EPA limit 60 µg/L
worst single sample: 44.7 µg/L
56/57 SYR4 2012–2019
Nitrate
4930 µg/L 49%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Nitrate-Nitrite
4821.5 µg/L 48%
of the EPA limit 10000 µg/L
worst single sample: 4930 µg/L
8/8 SYR4 2012–2019
Lead
15.4 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 16 µg/L
7/60 SYR4 2013–2019
Barium
339 µg/L 17%
of the EPA limit 2000 µg/L
worst single sample: 340 µg/L
3/3 SYR4 2012–2018
Chloroform
7.35 µg/L
No EPA limit set
worst single sample: 7.7 µg/L
2/8 SYR4 2012–2019
Bromodichloromethane
4.3 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
Dibromochloromethane
2.9 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
93 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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MORROCCO, JASON
Phone
860-342-6734
Email
[email protected]

Frequently asked questions about Portland Water Department

Is Portland Water Department tap water safe to drink?

EPA monitoring detected 13 contaminants in Portland Water Department'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 Portland Water Department's water?

EPA monitoring detected Copper, TTHM, Total Haloacetic Acids (HAA5), Nitrate, Lead, and others. The full list with the level and data source for each is above.

How many people does Portland Water Department serve?

Portland Water Department reports serving 5,010 people in Connecticut, per its EPA record.

Has Portland Water Department had any water quality violations?

The EPA has 47 violations on file for Portland Water Department, of which 24 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.