Tap Water Results

Pennsylvania American Water – Pittsburgh water quality

Pittsburgh, PA · serves 686,000 people (215,173 connections) · Surface water · Private · EPA ID PA5020039

Data: U.S. EPA · How we read the data · How we check it

Buys water from West County Municipal Authority – McKeesport, Pittsburgh Water & Sewer Authority. Treated water bought from another system can carry that system's contaminants.

Summary

No federal limits exceeded in EPA data.

PFAS
Not detectedNone of 29 PFAS found above EPA's reporting limits in 12 samples (2023–2025).
Lithium
Above screening levelHighest result 19.6 ppb. EPA uses 10 ppb to decide what to study further. It is not a health limit, and there is no federal limit for lithium. About 1 in 4 systems tested were above it.
Lead
Below action level4 ppb (parts per billion) at the 90th percentile: 9 in 10 homes sampled were at or below it. Action level 15 ppb, falling to 10 ppb in Nov 2027. Monitoring period ending Sep 2025. Your home's pipes can make yours higher.
Violations
Resolved1 health-based violation since 2016, most recently Nov 2017. One required an urgent public notice within 24 hours (the kind behind boil-water notices), most recently Nov 2017. What to do if you get a notice.
What you can do

PFAS (“forever chemicals”)

EPA UCMR 5: 3 entry points tested Jan 2024 to Oct 2024. "Average" is the highest entry-point average (non-detects counted as zero), the way EPA compares UCMR 5 results to the limits. ppt = parts per trillion. These results do not determine compliance.

ContaminantHighest averageHighest resultLimitStatus
PFOA
Not detected
Limit 4 ppt
––4 pptNot detected
PFOS
Not detected
Limit 4 ppt
––4 pptNot detected
PFHxS
Not detected
Limit 10 ppt
––10 pptNot detected
PFNA
Not detected
Limit 10 ppt
––10 pptNot detected
HFPO-DA (GenX)
Not detected
Limit 10 ppt
––10 pptNot detected
Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit)
Not detected
Limit 1
––1Not detected
PFBS
Not detected
Guideline 2,000 ppt
––2,000 ppt guidelineNot detected
PFBA
Not detected
Guideline 6,000 ppt
––6,000 ppt guidelineNot detected
PFHxA
Not detected
Guideline 3,000 ppt
––3,000 ppt guidelineNot detected

Pennsylvania has its own PFAS limits. PFOA 14 ppt (this system's highest average: not detected), PFOS 18 ppt (this system's highest average: not detected). State compliance is judged on the state's own sampling, so ask the utility or the state program whether it meets them.

29 PFAS tested, 0 detected at least once. "Not detected" means below EPA's reporting limit (about 2 to 20 ppt depending on the chemical), not proven zero. PFAS not listed were not detected. The limits for PFHxS, PFNA, GenX and the Hazard Index were proposed for rescission in May 2026. That proposal is not final. Systems have until 2029 to meet the limits.

Lithium

Detected in 4 of 12 samples. Highest result 19.6 ppb. EPA's non-enforceable screening level is 10 ppb. Above screening level The screening level is how EPA decides what to study further, not a health limit. There is no federal limit for lithium and no filter is certified to remove it. About lithium.

Lead and copper

Latest 90th percentile: 4 ppb lead (Jun 2025 – Sep 2025). Below action level

Monitoring periodLead (90th pct.)
Jun 2025 – Sep 20254 ppb
Jun 2022 – Sep 20223.8 ppb
Jun 2019 – Sep 20191 ppb
Earlier results (9)
Jun 2016 – Sep 20162.8 ppb
Jun 2013 – Sep 20134 ppb
Jan 2012 – Dec 20122 ppb
Jan 2010 – Dec 20103 ppb
Jan 2004 – Dec 20043 ppb
Jan 2001 – Dec 20014 ppb
Jan 1998 – Dec 19983 ppb
Jul 1995 – Dec 19953 ppb
Jul 1994 – Dec 19944 ppb

Lead comes from pipes and fixtures, not the source water, so it varies home to home. The 90th percentile means 9 in 10 sampled homes were at or below it. More on lead.

Violations

1
Health-based since 2016
1
Monitoring/reporting since 2016
0
Health-based unresolved now
10
Total ever recorded, incl. paperwork
WhenWhat happenedStatus
Nov 2017The water was cloudier than allowed at least once. Cloudiness can shield germs from disinfection.
Urgent public notice required What that means
EPA record: Interim Enhanced Surface Water Treatment Rule · Single Turbidity Exceed (Enhanced SWTR) (limit )
Resolved
Resolved

Health-based violations mean a contaminant exceeded a limit or a required treatment step was missed. Monitoring and reporting violations mean required tests or reports were late or missing, so the water's quality during that time is unknown. The total includes every violation in EPA's records, most of them paperwork.

Earlier EPA testing (2013–2020)

ContaminantHighestGuidelineDetectedTested
Manganese6.9 ppb300 ppb10 of 12UCMR 4 (2020)
Chlorate370 ppb210 ppb16 of 16UCMR 3 (2015)
Molybdenum1.2 ppb40 ppb2 of 16UCMR 3 (2015)
Chromium-60.73 ppb–16 of 16UCMR 3 (2015)
Strontium0.38 ppm1.5 ppm16 of 16UCMR 3 (2015)
1,4-Dioxane0.15 ppb0.35 ppb1 of 8UCMR 3 (2015)

Where it serves

Pittsburgh, Hanover, Amwell, Mount Pleasant, East Finley, Smith, Somerset, Morris, North Strabane, Cecil, Independence, North Fayette, Chartiers, Elizabeth, Robinson, South Fayette, Peters, Jefferson Hills, Union, West Mifflin, Collier, Carroll, Bethel Park, Upper St. Clair, South Park, White Oak, Mount Lebanon, Baldwin, Munhall, Duquesne, Castle Shannon, Glassport, Muse, Greenock, New Eagle, Dravosburg, Southview, Joffre, Meadowlands, Atlasburg, Midway, West Middletown, East Pittsburgh, West Elizabeth, Westland

69 ZIP codes the system reported serving

15004, 15017, 15018, 15019, 15021, 15025, 15031, 15034, 15037, 15038, 15045, 15047, 15053, 15054, 15055, 15057, 15060, 15063, 15064, 15067, 15071, 15078, 15088, 15102, 15106, 15110, 15112, 15120, 15122, 15123, 15129, 15131, 15135, 15142, 15204, 15205, 15207, 15208, 15210, 15211, 15216, 15220, 15226, 15227, 15228, 15234, 15236, 15241, 15242, 15243, 15301, 15311, 15312, 15314, 15317, 15321, 15323, 15329, 15330, 15332, 15340, 15342, 15347, 15350, 15361, 15363, 15367, 15378, 15379

Nearby utilities

Questions

Is Pennsylvania American Water – Pittsburgh water safe to drink?

Pennsylvania American Water – Pittsburgh had 1 health-based violation since 2016, all since resolved. EPA testing found no PFAS above the federal limits. Federal data can't tell you about your own pipes: lead comes from service lines and plumbing, so test your tap if your home was built before 1986. For the official word, read the utility's annual Consumer Confidence Report.

Does Pennsylvania American Water – Pittsburgh water have PFAS?

EPA tested Pennsylvania American Water – Pittsburgh for 29 PFAS between Jan 2024 and Oct 2024 and none were detected above the reporting limits (about 2 to 20 ppt depending on the chemical).

What is the lead level in Pennsylvania American Water – Pittsburgh water?

The most recent 90th-percentile lead result for Pennsylvania American Water – Pittsburgh is 4 ppb, for the period ending Sep 2025. The federal action level is 15 ppb, falling to 10 ppb in November 2027. The 90th percentile means 9 in 10 homes sampled were at or below this number. Individual homes can be higher.

Check these numbers yourself

Every figure on this page comes from public EPA records. You don't have to take our word for it:

Found something that doesn't match? Tell us and we'll check it against EPA's records. How we check our data.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.