Tap Water Results

Reading Area Water Authority water quality

Reading, PA · serves 95,100 people (28,500 connections) · Surface water · Local government · EPA ID PA3060059

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

Summary

PFAS above the 2024 federal limits. Systems have until 2029 to meet the PFAS limits.

Is it an emergency? No: PFAS limits are about years of exposure, not a glass of water, and nothing in EPA's data calls for you to stop drinking the water today. If your utility ever issues a boil-water or do-not-drink notice, follow it.

PFAS
Above limitPFOA above the federal limit in EPA's 2023–2025 testing (PFOA 6.13 ppt vs a limit of 4 ppt, where ppt = parts per trillion).
Lead
Below action level0 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
Resolved4 health-based violations since 2016, most recently Apr 2025. 3 required an urgent public notice within 24 hours (the kind behind boil-water notices), most recently Oct 2018. What to do if you get a notice.
What you can do

PFAS (“forever chemicals”)

EPA UCMR 5: 1 entry point 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
Above limit
Limit 4 ppt
6.13 ppt
1.53× the limit
6.6 ppt4 pptAbove limit
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)
Detected, below limit
Limit 1
0.00250.00281Detected, below limit
PFBS
Detected, below limit
Guideline 2,000 ppt
5.03 ppt5.6 ppt2,000 ppt guidelineDetected, below limit
PFBA
Not detected
Guideline 6,000 ppt
––6,000 ppt guidelineNot detected
PFHxA
Detected, below limit
Guideline 3,000 ppt
4.05 ppt4.4 ppt3,000 ppt guidelineDetected, below limit
PFPeA
Detected, no limit
4.58 ppt5.4 pptnoneDetected, no limit
PFHpA
Detected, no limit
0.75 ppt3 pptnoneDetected, no limit

Pennsylvania has its own PFAS limits. PFOA 14 ppt (this system's highest average: 6.13 ppt), 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.

For context: the PFOA average is higher than at 87% of the Pennsylvania systems EPA tested.

29 PFAS tested, 5 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

Not detected in 4 samples (reporting limit 9 ppb). About lithium.

Lead and copper

Latest 90th percentile: 0 ppb lead (Jun 2025 – Sep 2025). Below action level

Highest since 2016: 2 ppb (Sep 2016).

Monitoring periodLead (90th pct.)
Jun 2025 – Sep 20250 ppb
Jun 2022 – Sep 20220 ppb
Jun 2019 – Sep 20191 ppb
Earlier results (9)
Jun 2016 – Sep 20162 ppb
Jun 2013 – Sep 20133 ppb
Jan 2012 – Dec 20122 ppb
Jan 2011 – Dec 20112 ppb
Jan 2010 – Dec 20101.2 ppb
Jan 2009 – Dec 20091 ppb
Jan 2008 – Jun 20081 ppb
Jul 2007 – Dec 20071 ppb
Jan 2007 – Jun 20072 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

4
Health-based since 2016
4
Monitoring/reporting since 2016
0
Health-based unresolved now
59
Total ever recorded, incl. paperwork
WhenWhat happenedStatus
Apr 2025A required step to remove or kill germs (filtration, disinfection or fixing a contaminated well) was not done properly.
EPA record: Long Term 2 Enhanced Surface Water Treatment Rule · Treatment Technique (SWTR and GWR) (limit )
Resolved
Resolved
Aug 2016 – Oct 2018
3 times
E. coli was confirmed in the water. E. coli means the water may have been contaminated with sewage or animal waste.
Urgent public notice required What that means
EPA record: Revised Total Coliform Rule · Maximum Contaminant Level Violation, E. coli (RTCR)
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
Manganese3.37 ppb300 ppb3 of 4UCMR 4 (2019)
Chromium-60.18 ppb–8 of 8UCMR 3 (2013)
Strontium0.13 ppm1.5 ppm8 of 8UCMR 3 (2013)

Where it serves

Reading, Robeson, Exeter, Cumru, Muhlenberg, Wyomissing

ZIP codes the system reported serving: 19508, 19601, 19602, 19603, 19604, 19605, 19606, 19607, 19610, 19611

Nearby utilities

Questions

Is Reading Area Water Authority water safe to drink?

Reading Area Water Authority had 4 health-based violations since 2016, all since resolved. EPA testing found PFAS above the 2024 federal limits, which systems must meet by 2029. 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 Reading Area Water Authority water have PFAS?

Yes. EPA's 2023–2025 testing of Reading Area Water Authority found 5 PFAS at least once. The highest entry-point averages were above the federal limit for PFOA: PFOA 6.13 ppt (limit 4 ppt for PFOA and PFOS, 10 ppt for the others).

What is the lead level in Reading Area Water Authority water?

The most recent 90th-percentile lead result for Reading Area Water Authority is 0 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.