WaterVerge

Is Natrona Heights, PA Tap Water Safe to Drink?

Graded B-, with 4 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

18K residents served 2 water systems PWSID: PA5020108
Overall Score
74.2 / 100
Violations
4 active
Last Updated
May 2026
Source
Surface water
#151 of 560 in Pennsylvania Top 63% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B-GRADE
Water Quality Grade
74.2/100
waterverge.com
B- 74.2/100

Natrona Heights, PA — Water Quality Report

Natrona Heights's drinking water received a grade of B- (74.2 out of 100), indicating fair water quality. The city's 2 water systems serve approximately 18,061 residents using surface water.

Lead levels were measured at 1.2 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 1 PFAS compound in the water supply.

The system has 81 violations on record, including 12 health-based violations. 4 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Natrona Heights's water

Natrona Heights ranks #151 out of 560 cities in Pennsylvania for water quality, placing it mid-range in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

PFAS compounds were detected in testing, though levels remain within current EPA limits. Residents seeking extra precaution may consider an activated carbon or reverse osmosis filter.

Hexavalent chromium (chromium-6) was detected at 0.06 µg/L in UCMR 3 testing. While below California's 10 µg/L limit and with no federal MCL set, residents sensitive to this contaminant may consider reverse osmosis filtration.

The system has seen 11 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
74.2 out of 100 Grade B-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
23.7/45
D
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.2 ppb (90th percentile).
Contaminants
16.5/20
B
1 PFAS compound detected.
Compliance
10/10
A
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Surface water.
Water Safety

Is Natrona Heights, PA water safe to drink?

Concerns Identified

Natrona Heights's drinking water has significant quality concerns based on EPA testing data. With a grade of B- (74.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 18,061 residents using surface water (rivers, lakes, or reservoirs).

4
Active Violations
1.2 ppb
Lead (90th %ile)
1 compound
PFAS Detected
8 events
Disaster History

Recent water quality updates for Natrona Heights

A timeline of significant water quality events, violations, and data updates.

PFAS
1 PFAS "forever chemical" compound detected

Detected at levels within current EPA limits. PFAS persist indefinitely in the environment.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Natrona Heights's water quality assessment. Grade: B- (74.2/100).

Violation
1 drinking water violation recorded

Contaminants: CARBON, TOTAL.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: TTHM.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
HURRICANE SANDY

Federal disaster declaration (FEMA DR-3356). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Natrona Heights's water supply.

Lead Within Limits
Detected: 1.2 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (1 compound) Elevated
Detected: Highest: PFBA at 0.0214 µg/L Limit: 0.004 µg/L (EPA MCL)

Detected but within current EPA limits. PFAS do not break down in the environment and can accumulate in the body over time. An activated carbon filter can reduce exposure.

Violation history

Natrona Heights's water system has 81 total violations on record, including 12 health-based violations. 4 remain unresolved. 11 violations were issued in the last 5 years.

MRMCLOther
Most recent violations:
Dec 2025 CARBON, TOTAL Resolved
Oct 2025 TTHM Resolved
Jul 2025 Consumer Confidence Rule Open
Jan 2025 CARBON, TOTAL Resolved
Oct 2024 CARBON, TOTAL Resolved

Flood & environmental risk

Allegheny County has experienced 8 federally declared disasters since 1972. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Allegheny River At Lock & Dam 6 At Clinton, Allegheny River Below Lock & Dam 6 At Clinton, Allegheny River At Lock & Dam 5 Near Freeport, Allegheny River Bl Lock & Dam 5 Near Freeport, Buffalo Creek At Iron Bridge.

HURRICANE SANDY
Hurricane FEMA DR-3356
HURRICANE KATRINA
Hurricane FEMA DR-3235
TROPICAL DEPRESSION IVAN
Hurricane FEMA DR-1557

Where does Natrona Heights's water come from?

Natrona Heights's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 18,061 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Allegheny River At Lock & Dam 6 At Clinton (river), Allegheny River Below Lock & Dam 6 At Clinton (river), Allegheny River At Lock & Dam 5 Near Freeport (river), Allegheny River Bl Lock & Dam 5 Near Freeport (river), Buffalo Creek At Iron Bridge (river).

What Natrona Heights residents can do

Install a water filter

Recommended: Activated carbon or reverse osmosis filter. This addresses the specific contaminants found in Natrona Heights's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Natrona Heights's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
1.2 ppb
EPA Action Level: 15 ppb · 8% of limit
Safe Level
PFBA
PFAS / Forever Chemical
Near MCL
0.0214 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Detected
HAA5 (Disinfection Byproducts)
Disinfection Byproduct
Safe
16.5 µg/L
EPA MCL: 60 µg/L · 27% of limit
Within LimitUCMR 4 DataHAA6Br: 7.2 µg/LHAA9: 22.8 µg/L
Chromium-6 (Hexavalent Chromium)
Inorganic
Detected
0.06 µg/L
CA MCL (no federal MCL): 10 µg/L · 1% of limit
DetectedUCMR 3 Data
Strontium
Inorganic
Detected
150.0 µg/L
EPA Health Ref Level: 1,500 µg/L · 10% of limit
DetectedUCMR 3 Data
Manganese
Inorganic
Detected
2.3 µg/L
EPA Secondary MCL: 50 µg/L · 5% of limit
DetectedUCMR 4 Data
Chlorate
Disinfection Byproduct
Detected
49.5 µg/L
EPA Lifetime HA: 210 µg/L · 24% of limit
DetectedUCMR 3 Data
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
1
Detected
0
Exceed EPA MCL
Compliance Record

Violation summary

81
Total violations
12
Health-based
4
Active / unresolved
Dec 2025
Most recent violation
Compliance Record

Violations & advisories

81 Total
4 Active
12 Health-based
77 Resolved
2 SNC
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
21
Volatile Organic Chemicals
20
Synthetic Organic Chemicals
19
Stage 2 Disinfectants and Disinfection Byproducts Rule
8
Surface Water Treatment Rule
6
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Feb 2022 Active
Public Notice
Other Violation 0
Nov 2021 Active
Public Notice
Other Violation 0
Active
Compliance Violation
Monitoring 0
Dec 2025 Resolved
CARBON, TOTAL
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 2026
Oct 2025 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Dec 2025
Jan 2025 Resolved
CARBON, TOTAL
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2025
Oct 2024 Resolved
CARBON, TOTAL
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2024
Oct 2023 Resolved
CARBON, TOTAL
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2023
Jan 2022 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Mar 2022
Oct 2021 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Dec 2021
Jul 2021 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Sep 2021
Jan 2019 Resolved
Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 2019
Jan 2019 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2019
Jan 2017 Resolved
Simazine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2017
Jan 2017 Resolved
Atrazine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2017
Jan 2017 Resolved
LASSO
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2017
Jan 2017 Resolved
Total Polychlorinated Biphenyls (PCB)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2017
Nov 2016 Resolved
Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2016
Oct 2016 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2016
Showing 20 of 81 violations
Industrial pollution

Top industrial polluters within 10 miles of Natrona Heights

Industrial polluters nearby

Reported releases to surface water by facilities near Natrona Heights, ranked by pounds discharged annually.

Total reported releases to surface water: 326,522 lbs

FacilityTop chemicalTo surface water (lbs/yr)Distance
ATI FLAT ROLLED PRODUCTS HOLDINGS LLC
Primary Metals · ATI INC
VANDERGRIFT, PA15690
Nitrate compounds (water dissociable; reportable only when in aqueous solution)325,1938.6 mi
BRAEBURN ALLOY STEEL LLC
Primary Metals · G O CARLSON INC
LOWER BURRELL, PA15068
Nickel1,1821.0 mi
ATI FLAT ROLLED PRODUCTS HOLDINGS LLC
Primary Metals · ATI INC
BRACKENRIDGE, PA15014
Nickel And Nickel Compounds1191.5 mi
PPG INDUSTRIESINC-SPRINGDALE COMPLEX
Chemicals · PPG INDUSTRIES INC
SPRINGDALE, PA15144
Zinc compounds286.7 mi
CURTISS WRIGHT ELECTRO MECH CORP
Machinery · CURTISS-WRIGHT CORP
CHESWICK, PA15024
Nickel06.6 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Site context

Superfund sites within 10 miles of Natrona Heights

Superfund sites nearby

Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

Source: EPA Superfund National Priorities List

Environmental Risk

Flood & disaster history

8
Declared disasters
Oct 2012
Most recent
Flood
Most common type

Allegheny County has experienced 8 federally declared disasters since 1972. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Oct 2012
HURRICANE SANDY
Hurricane FEMA #3356
Sep 2005
HURRICANE KATRINA
Hurricane FEMA #3235
Sep 2004
TROPICAL DEPRESSION IVAN
Hurricane FEMA #1557
Jan 1996
SEVERE STORMS AND FLOODING
Flood FEMA #1093
Jun 1986
SEVERE STORMS & FLOODING
Flood FEMA #766
Nov 1985
SEVERE STORMS & FLOODING
Flood FEMA #754

Recommended water filters

Based on contaminants detected in Natrona Heights's water supply, we recommend the following filter types.

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
1 PFAS compound detected

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.2 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium ND HI µg/L PFAS Not Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA 0.021 HI µg/L PFAS Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA ND 0.004 µg/L PFAS Not Detected
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA ND HI µg/L PFAS Not Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 5.3 ppb from 1992 (7.0 ppb) to 2025 (1.7 ppb).
Contaminant Rankings

See how Natrona Heights compares by contaminant

Explore where Natrona Heights ranks among all Pennsylvania cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Surface Water
Operator
Local Government
Population Served
18,061
Water Systems
2
Source breakdown
Surface Water
1
Purchased Surface Water
1
Water Source

Where Natrona Heights's water comes from

Surface Water

Natrona Heights's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 18,061 people through 2 water systems.

Local Hydrology

Water bodies near Natrona Heights

Natrona Heights is located near 5 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Allegheny River At Lock & Dam 6 At Clinton
river
Allegheny River Below Lock & Dam 6 At Clinton
river
Allegheny River At Lock & Dam 5 Near Freeport
river
Allegheny River Bl Lock & Dam 5 Near Freeport
river
Buffalo Creek At Iron Bridge
river
Infrastructure

Water systems serving Natrona Heights

System Name PWSID Population Source
HARRISON TWP WATER AUTH PA5020108 13,411 SW
FAWN FRAZER JT WATER AUTH PA5020076 4,650 SWP
Regional Comparison

How Natrona Heights compares

Full Pennsylvania rankings →

Natrona Heights's score of 74.2/100 is above the average of 49/100 among major Pennsylvania cities. It outscores 8 of 10 nearby cities.

Natrona Heights (this city)
74.2
Bryn Mawr
34.2
Mcmurray
86.8
Greensburg
46.7
Pennsylvania avg
49
City Profile

About Natrona Heights, PA

Wikipedia →

Natrona Heights is an unincorporated community in Harrison Township, Allegheny County in the U.S. state of Pennsylvania. It is located in Western Pennsylvania within the Pittsburgh Metropolitan Statistical Area, approximately 24 miles (39 km) northeast of Pittsburgh. Natrona Heights is situated near the Allegheny River, Natrona, Brackenridge, and Tarentum.

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Frequently asked questions

Is Natrona Heights, PA tap water safe to drink?

Natrona Heights's water quality earned a grade of B- (74.2/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #151 out of 560 cities tested in Pennsylvania.

What contaminants are in Natrona Heights's water?

Lead was measured at 1.2 ppb (90th percentile). 1 PFAS compound was detected. 81 violations are on record.

How is Natrona Heights'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 Natrona Heights?

PFAS compounds have been detected. A filter with activated carbon can help reduce exposure.

Where does Natrona Heights's water come from?

Natrona Heights's water is sourced from Surface water. The city has 2 water systems serving approximately 18,061 residents.

What health violations has Natrona Heights's water system had?

Natrona Heights has 12 health-based violations on record. The most recent violation was recorded in December 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 4 violations remain unresolved.

How does Natrona Heights's water compare to other cities?

Natrona Heights ranks #151 out of 560 cities in Pennsylvania (better than 73% of state cities) and #9902 out of 15744 cities nationally (37th percentile). The grade of B- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.