Hawthorn Redbank Redbank Ma
What EPA’s and Pennsylvania’s records show in this utility’s water: PFAS; nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.
- Serves
- 1,500 people
- Connections
- 466
- Water source
- Surface water
- Based in
- Hawthorn, PA
- County
- Clarion
- Owner
- Local government
The short answer
5 results are above the health goal. The worst: PFOS, above the health goal. 6 health-based violations since 2016.
What handles itWhat was found
PFAS: Pennsylvania’s own results under its PFAS rule, entry point samples taken from Feb. 19, 2024 to July 27, 2026.
Lead and copper: EPA SDWIS monitoring periods ending 1993 to 1996.
Uranium, arsenic, total trihalomethanes (TTHM), haloacetic acids (HAA5), nitrate, fluoride and chromium (total): Pennsylvania’s own results, samples taken from Feb. 10, 2020 to Aug. 10, 2026, with EPA’s 2012 to 2019 file for earlier years.
PFAS: PFOS, PFOA and PFBS were found, of the six PFAS in EPA’s 2024 drinking water rule; their results are below. Three other PFAS with no federal limit were found, the highest PFBA at 0.96 ppt: see them below.
EPA’s 2024 PFAS rule, compound by compound
| PFAS | EPA’s limit | Result |
|---|---|---|
| PFOA | 4.0 ppt | Above the health goal0.65 ppt highest, found in 2 of 10 samples. Details |
| PFOS | 4.0 ppt | Above the health goal0.76 ppt highest, found in 2 of 10 samples. Details |
| PFHxS | 10 ppt | Not foundNot found in any of 7 samples |
| PFNA | 10 ppt | Not foundNot found in any of 7 samples |
| HFPO-DA (GenX) | 10 ppt | Not foundNot found in any of 7 samples |
| PFBS | Index only | Below EPA’s limits0.3 ppt highest, found in 1 of 7 samples. Details |
| Results from Pennsylvania’s own PFAS monitoring, samples where water enters the pipes; each compound’s card has its four-quarter averages, the way limits are judged. The limits are EPA’s 2024 rule, with compliance due from 2029; EPA has since proposed changes to some of them, explained on each compound’s page. Pennsylvania’s own limits for PFOA and PFOS are in force now. PFBS has no limit of its own and counts only toward EPA’s Hazard Index, which TapBuff works out only from UCMR 5’s averages, so it isn’t given here. | ||
About PFAS certifications
NSF’s PFAS claims are tested to below 20 ppt. EPA’s limit is 4.0 ppt, and EPA says no certification yet shows a filter reaching its levels.
Above the health goal5
PFOS
Comes from the source
0.76ppt
Highest sample, July 27, 2026; found in 2 of 10
2026 average: 0.38 ppt
The highest sample was 0.76 ppt: below EPA’s new limit of 4.0 ppt, which takes effect in 2029, but above its health goal of zero. Averaged over four quarters at one entry point, the way both Pennsylvania’s limit and EPA’s are judged, the highest was 0.14 ppt, for the year to March 31, 2025: below Pennsylvania’s limit of 18 ppt and below EPA’s new limit of 4.0 ppt. In 2026, the latest year on file, its two samples averaged 0.38 ppt.
What handles it
- NSF/ANSI 53 look for “PFOS Reduction”
- NSF/ANSI 58 look for “Perfluorooctane Sulfonate (PFOS)”
PFOA
Comes from the source
0.65ppt
Highest sample, Jan. 27, 2025; found in 2 of 10
2026 average: 0.32 ppt
The highest sample was 0.65 ppt: below EPA’s new limit of 4.0 ppt, which takes effect in 2029, but above its health goal of zero. Averaged over four quarters at one entry point, the way both Pennsylvania’s limit and EPA’s are judged, the highest was 0.16 ppt, for the year to March 31, 2025: below Pennsylvania’s limit of 14 ppt and below EPA’s new limit of 4.0 ppt. In 2026, the latest year on file, its two samples averaged 0.32 ppt.
What handles it
- NSF/ANSI 53 look for “PFOA Reduction”
- NSF/ANSI 58 look for “Perfluorooctanoic Acid (PFOA)”
Lead
Comes from pipes, often your own
1.8ppb
90th percentile, 1996
In the latest period, 9 in 10 homes sampled were at or below 1.8 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.
What handles it
- NSF/ANSI 53 look for “Lead Reduction”
- NSF/ANSI 58 look for “Lead Reduction”
Uranium
Comes from the source
1ppb
Highest yearly average, 2023
Averaged by year, the highest was 1 ppb, in 2023: below EPA’s legal limit of 30 ppb, but above its health goal of zero. That is the only year on file.
What handles it
- NSF/ANSI 58 look for “Uranium”
Arsenic
Comes from the source
0.26ppb
Highest yearly average, 2020 to 2026
2026: not found
Averaged by year, the highest was 0.26 ppb, in 2025: below EPA’s legal limit of 10 ppb, but above its health goal of zero. In 2026, the latest year on file, it wasn’t found in its one sample.
What handles it
- NSF/ANSI 58 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
- NSF/ANSI 53 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
Below EPA’s limits6
Total trihalomethanes (TTHM)
Forms or is added in treatment
50.5ppb
Highest yearly average, 2020 to 2026
2026 average: 23.2 ppb
Averaged by year, the highest was 50.5 ppb, in 2025, below EPA’s legal limit of 80 ppb. Its highest single sample was 70.2 ppb. In 2026, the latest year on file, its three samples averaged 23.2 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 68.2 ppb, in 2016.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
Haloacetic acids (HAA5)
Forms or is added in treatment
29.5ppb
Highest yearly average, 2020 to 2026
2026 average: 12.4 ppb
Averaged by year, the highest was 29.5 ppb, in 2021, below EPA’s legal limit of 60 ppb. Its highest single sample was 48.6 ppb. In 2026, the latest year on file, its three samples averaged 12.4 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 51.2 ppb, in 2019, and EPA recorded a violation in 2015.
What handles it
No certification claim covers this compound yet.
Nitrate
Comes from the source
0.85ppm
Highest sample; found in 4 of 6
2026, one sample: 0.62 ppm
The highest sample, in 2025, was 0.85 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 0.62 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.94 ppm, in 2017.
What handles it
- NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
- NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
Fluoride
Forms or is added in treatment
0.2ppm
Highest yearly average, 2020 to 2026
2026, one sample: 0.08 ppm
Averaged by year, the highest was 0.2 ppm, in 2020, below EPA’s legal limit of 4.0 ppm. In 2026, the latest year on file, its one sample was 0.08 ppm.
What handles it
- NSF/ANSI 58 look for “Fluoride Reduction”
- NSF/ANSI 53 look for “Fluoride”
Chromium (total)
Comes from the source
2.9ppb
Highest yearly average, 2020 to 2026
2026: not found
Averaged by year, the highest was 2.9 ppb, in 2020, below EPA’s legal limit of 100 ppb. In 2026, the latest year on file, it wasn’t found in its one sample. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 3.0 ppb, in 2019.
What handles it
- NSF/ANSI 58 look for “Chromium (Hexavalent) Reduction”
- NSF/ANSI 53 look for “Chromium Reduction”
PFBS
Comes from the source
0.3ppt
Highest sample, Jan. 27, 2025; found in 1 of 7
2026: not found
The highest sample was 0.3 ppt, below EPA’s hazard index benchmark of 2,000 ppt. PFBS has no legal limit or health goal of its own. In 2026, the latest year on file, it wasn’t found in any of its two samples.
What handles it
- NSF/ANSI 53 look for “Total PFAS Reduction”
Also found, with no federal limit
EPA measured these PFAS to learn how often they occur. None has a legal limit or a health goal yet.
| Compound | Highest sample | Found in | Certification claim |
|---|---|---|---|
| PFBA | 0.96 ppt | 1 of 1 | None covers it |
| PFPeA | 0.73 ppt | 1 of 1 | None covers it |
| PFHxA | 0.56 ppt | 1 of 1 | None covers it |
19 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
- 11Cl-PF3OUdS
- 4:2 FTS
- 6:2 FTS
- 8:2 FTS
- 9Cl-PF3ONS
- ADONA
- HFPO-DA (GenX)
- NFDHA
- PFDA
- PFDoA
- PFEESA
- PFHpA
- PFHpS
- PFHxS
- PFMBA
- PFMPA
- PFNA
- PFPeS
- PFUnA
What handles it
A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”
- NSF/ANSI 53
Claims: PFOS Reduction, PFOA Reduction, Lead Reduction, Arsenic (Pentavalent)<=50 ppb Reduction
For: PFOS, PFOA, Lead, Arsenic
Other certifiers’ wording: Total PFAS Reduction; Perfluorooctane Sulfonate (PFOS); Perfluorooctanoic Acid (PFOA); Arsenic (III) (50 ppb influent level)
- NSF/ANSI 58
Claims: Perfluorooctane Sulfonate (PFOS), Perfluorooctanoic Acid (PFOA), Lead Reduction, Uranium, Arsenic (Pentavalent)<=50 ppb Reduction
For: PFOS, PFOA, Lead, Uranium, Arsenic
Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level)
At the tap, or for the whole house?
Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.
Filters with those claims on a certifier’s listing
Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money
Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: PFOS, PFOA, Lead, Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: PFOS, PFOA, Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: PFOS, PFOA, Lead, Arsenic
ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOS, PFOA, Lead
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA, Lead
The best water filters for PFAS, ranked
Violations since 2016
| Contaminant or rule | Type | Period | Measured | Status |
|---|---|---|---|---|
| Surface Water Treatment Rule | Required treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR) | Nov. 1, 2024 to Nov. 30, 2024 | — | Resolved |
| Total organic carbon | Not enough organic matter was removed. It reacts with disinfectant to form byproducts.EPA: Treatment Technique Precursor Removal | July 1, 2023 to Sept. 30, 2023 | — | Resolved |
| Total organic carbon | Not enough organic matter was removed. It reacts with disinfectant to form byproducts.EPA: Treatment Technique Precursor Removal | April 1, 2023 to June 30, 2023 | — | Resolved |
| Total organic carbon | Not enough organic matter was removed. It reacts with disinfectant to form byproducts.EPA: Treatment Technique Precursor Removal | July 1, 2022 to Sept. 30, 2022 | — | Resolved |
| Total organic carbon | Not enough organic matter was removed. It reacts with disinfectant to form byproducts.EPA: Treatment Technique Precursor Removal | April 1, 2022 to June 30, 2022 | — | Resolved |
| Total organic carbon | Not enough organic matter was removed. It reacts with disinfectant to form byproducts.EPA: Treatment Technique Precursor Removal | Jan. 1, 2020 to March 31, 2020 | — | Resolved |
| Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 68 monitoring or reporting violations not shown. | ||||
What this report can’t tell you
Everything else. Uranium, arsenic, total trihalomethanes (TTHM), haloacetic acids (HAA5), nitrate, fluoride and chromium (total) results here are Pennsylvania’s own from 2020 on, with EPA’s national file for 2012 to 2019. Hawthorn Redbank Redbank Ma’s own annual report, which it must send you every year, has the contaminants this page does not show.
Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.
What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.
Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Pennsylvania’s results run from Feb. 10, 2020 to Aug. 10, 2026; Pennsylvania’s PFAS results run from Feb. 19, 2024 to July 27, 2026.
Testing your own tap
The 3 labs Pennsylvania certifies closest to the area Hawthorn Redbank Redbank Ma serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
G & C Coal Analysis Lab Inc
Summerville, PA · about 6 miles
Eurofins Drinking Water and Wastewater Northeast
Kittaning, PA · about 19 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics
Pace Analytical Services, LLC-Indiana
Indiana, PA · about 30 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Penn State Agricultural Analytical Services Laboratory: Drinking water test kits from many county Extension offices, mailed back to the lab overnight with payment. Packages cover bacteria and basic chemistry, with add-ons for nitrate, metals, lead, and mining or gas drilling concerns. The standard package of bacteria, pH and total dissolved solids is $60, or $70 with nitrate; bacteria alone is $40, nitrate $15 and lead $25. Drinking Water Testing, Penn State Agricultural Analytical Services Lab.
All 108 certified labs for PennsylvaniaSources
- EPA UCMR 5 occurrence data, file of Oct. 15, 2026
- Pennsylvania Department of Environmental Protection, Drinking Water Reporting System, PFAS results read Oct. 17, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q3
- Pennsylvania Department of Environmental Protection, Drinking Water Reporting System, results from Jan. 2, 2020 to Oct. 8, 2026, read Oct. 17, 2026
- EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, file of Feb. 5, 2024
- Certified labs: Pennsylvania DEP Laboratory Accreditation Program, accredited labs for drinking water, read Oct. 11, 2026; distances from the Census 2020 ZIP code tabulation area gazetteer
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.
PWSID PA6160026. Rebuilt from EPA data on Oct. 18, 2026.
What to do next
- Read up on the 5 results above a lineWhat each one does to health, where it comes from, and the certification claim that addresses it.Start with PFOS
- Get the utility’s own reportHawthorn Redbank Redbank Ma must send you a water quality report every year. It covers contaminants this page does not show.How to read it
- Test your own tap for leadYour service line, solder and fixtures decide the lead at your faucet, not the utility’s average.Lead in your water: what to do
- Compare certified filtersWhat the filters certified for these results cost over five years, cartridges included.Compare five-year costs