01The verdict: is Aaronsburg water safe?
Aaronsburg's drinking water has significant quality concerns based on EPA testing data. With a grade of F (36.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 550 residents using groundwater (wells).
Copper is over its legal limit
Measured at 4.71 mg/L against the EPA Action Level of 1.3 mg/L. The ledger below shows how far over — and which filter removes it.
See the measurement ↓550 people, 1 system
All figures on this page come from federal EPA compliance and testing data for the systems serving this city.
See the systems ↓Lead is approaching its limit
Measured at 11.0 ppb — 73% of the 15 ppb limit. Within the rules, but with less headroom than you'd want.
See the ledger ↓Aaronsburg's drinking water received a grade of F (36.5 out of 100), indicating failing water quality. The city's 1 water system serves approximately 550 residents using ground water under influence.
Lead levels were measured at 11.0 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program. The system has 342 violations on record, including 0 health-based violations. 30 remain unresolved.
Aaronsburg ranks #482 out of 559 cities in Pennsylvania for water quality, placing it among the lowest-rated in the state. Aaronsburg relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff. While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection. As a small community water system, Aaronsburg may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. The system has seen 30 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
02What's in Aaronsburg's water
Every contaminant flagged in Aaronsburg, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.
Over Limit — EPA Action Level: 1.3 mg/L
Exceeds the EPA action level. Copper leaches from household plumbing — flush taps for 30 seconds before drinking, and consider a certified filter.Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 11.0 | 15 | ppb | Inorganic | Near Limit |
| Copper (90th percentile) CopperInorganic A metal that enters drinking water mainly through corrosion of copper plumbing. Small amounts are essential for health, but excess levels are harmful. Health EffectsGastrointestinal distress (nausea, vomiting, diarrhea) at short-term high levels; liver and kidney damage from long-term exposure. EPA Limit1.3 mg/L action level Common SourcesCorrosion of copper household plumbing, erosion of natural deposits. | 4.71 | 1.3 | mg/L | Inorganic | Over Limit |
Cities ranked by 90th-percentile lead PF PFAS in Pennsylvania
Cities ranked by compounds detected Cu Copper in Pennsylvania
Cities ranked by 90th-percentile copper
03Aaronsburg's ten-year track record
Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 342 violations on record, including 0 health-based violations. 30 remain unresolved.
6 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.
▼ Down 0 ppb since 1994. Latest reading: 11 ppb (1996) — 73% of the action level. Sampled at higher-risk homes (90th percentile).
4.7mg/L(1994)
One sampling round on record — 362% of the 1.3mg/L EPA action level. Sampled at higher-risk homes (90th percentile).
04Where Aaronsburg's water comes from
Aaronsburg's drinking water is drawn from underground aquifers through wells.
Ground Water Under Influence
Underground aquifers reached by wells — naturally filtered, but can carry minerals like arsenic and nitrate.
Local treatment
Groundwater generally needs less treatment — typically disinfection and, where needed, mineral removal.
1 system
1 water system, operated under private ownership.
550 people
Residents served across Aaronsburg's service area.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals. Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds. The system is operated by private ownership and serves approximately 550 people through 1 water system.
| System name | PWSID | Population | Source |
|---|---|---|---|
| HAINES AARONSBURG MUN AUTH | PA4140108 | 550 | Ground Water Under Influence |
Water bodies near Aaronsburg
These water bodies shape the regional watershed and can indirectly affect groundwater quality.
05Pressure on Aaronsburg's watershed
Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.
Flood & storm history
8 federal disaster declarations on record for Centre County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.
06How Aaronsburg compares
Scores for nearby Pennsylvania cities on one line, with the average marked.
dashed line = Pennsylvania average (49/100)
Aaronsburg scores 36.5/100 — below the Pennsylvania average of 49/100. It outscores 3 of 10 nearby cities. Full Pennsylvania rankings →
79.8 / 100FBryn Mawr, PA
34.2 / 100FPittsburgh, PA
44 / 100AMcmurray, PA
86.8 / 100DGreensburg, PA
46.7 / 100FHarrisburg, PA
35.6 / 100
Compare all cities in the county — grades, violations, and contaminant data side by side.→
07What to do at home
Steps matched to what testing actually found in Aaronsburg's water — not generic advice.
Filter drinking & cooking water
NSF-certified water filter. Lead detected at 11.0 ppb
Compare tested filters →Flush taps & check your service line
Lead leaches from pipes as water sits. Run cold water 30 seconds before drinking (especially mornings), and ask the utility whether your address still has a lead service line.
Lead risks explained →Watch for Aaronsburg alerts
This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.
All water alerts →Frequently asked questions
Is Aaronsburg, PA tap water safe to drink?
Aaronsburg's water quality earned a grade of F (36.5/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #482 out of 559 cities tested in Pennsylvania.
What contaminants are in Aaronsburg's water?
Lead was measured at 11.0 ppb (90th percentile). 342 violations are on record.
How is Aaronsburg's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Aaronsburg?
While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.
Where does Aaronsburg's water come from?
Aaronsburg's water is sourced from Ground water under influence. The city has 1 water system serving approximately 550 residents.
Is Aaronsburg's groundwater at risk of contamination?
Aaronsburg uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 342 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Aaronsburg's water compare to other cities?
Aaronsburg ranks #482 out of 559 cities in Pennsylvania (better than 14% of state cities) and #15124 out of 15382 cities nationally (2th percentile). The grade of F reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Aaronsburg's small water system affect quality?
Aaronsburg's system serves approximately 550 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 342 violations on record.