WaterVerge

Is Montgomery, PA Tap Water Safe to Drink?

Graded D+, with 17 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

3K residents served 1 water system PWSID: PA4410161
Overall Score
50 / 100
Violations
17 active
Last Updated
May 2026
Source
Groundwater
#325 of 560 in Pennsylvania Top 83% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
D+GRADE
Water Quality Grade
50/100
waterverge.com
D+ 50/100

Montgomery, PA — Water Quality Report

Montgomery's drinking water received a grade of D+ (50 out of 100), indicating poor water quality. The city's 1 water system serves approximately 2,700 residents using groundwater.

Lead levels were measured at 5.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 146 violations on record, including 6 health-based violations. 17 remain unresolved.

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

What to know about Montgomery's water

Montgomery ranks #325 out of 560 cities in Pennsylvania for water quality, placing it below average in the state.

Montgomery 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.

As a small community water system, Montgomery may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 25 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
50 out of 100 Grade D+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
3/45
F
Historical violation record including health-based and monitoring violations.
Lead & Copper
17/20
B
Lead at 5.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Montgomery, PA water safe to drink?

Concerns Identified

Montgomery's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (50/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,700 residents using groundwater (wells).

17
Active Violations
5.0 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Montgomery

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Montgomery's water quality assessment. Grade: D+ (50/100).

Violation
2 drinking water violations recorded

Contaminants: TTHM, Total Haloacetic Acids (HAA5).

Violation
2 drinking water violations recorded

1 health-based. Contaminants: Groundwater Rule, Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
SEVERE STORMS AND FLOODING

Federal disaster declaration (FEMA DR-4292). Flood event — may have impacted local water infrastructure.

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 Montgomery's water supply.

Lead Within Limits
Detected: 5.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Montgomery's water system has 146 total violations on record, including 6 health-based violations. 17 remain unresolved. 25 violations were issued in the last 5 years.

MRTTOther
Most recent violations:
Jul 2024 TTHM Resolved
Jul 2024 Total Haloacetic Acids (HAA5) Resolved
Oct 2023 Groundwater Rule Resolved
Oct 2023 Consumer Confidence Rule Open
Jul 2023 Consumer Confidence Rule Open

Flood & environmental risk

Lycoming County has experienced 10 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 Wb Susquehanna River At Williamsport, Muncy Creek Near Muncy, West Branch Susquehanna River At Allenwood.

SEVERE STORMS AND FLOODING
Flood FEMA DR-4292
HURRICANE SANDY
Hurricane FEMA DR-3356
TROPICAL STORM LEE
Flood FEMA DR-4030

Where does Montgomery's water come from?

Montgomery's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,700 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Wb Susquehanna River At Williamsport (river), Muncy Creek Near Muncy (river), West Branch Susquehanna River At Allenwood (river).

What Montgomery residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Montgomery'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.

Flush your taps

Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.

Monitor alerts during storms

Montgomery'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
5.0 ppb
EPA Action Level: 15 ppb · 33% of limit
Safe Level
Compliance Record

Violation summary

146
Total violations
6
Health-based
17
Active / unresolved
Jul 2024
Most recent violation
Compliance Record

Violations & advisories

146 Total
17 Active
6 Health-based
129 Resolved
2 SNC
Violations by category
Synthetic Organic Chemicals
71
Volatile Organic Chemicals
20
Ground Water Rule
11
Public Notice Rule and Revised PN Rule
11
Radionuclides and Revised Rad Rule
11
Oct 2023 Active
Consumer Confidence Rule
Other Violation 0
Jul 2023 Active
Consumer Confidence Rule
Other Violation 0
Jan 2023 Active
Public Notice
Other Violation 0
Jan 2023 Active
Public Notice
Other Violation 0
Jan 2023 Active
Public Notice
Other Violation 0
Jan 2023 Active
Public Notice
Other Violation 0
Jan 2023 Active
Public Notice
Other Violation 0
Jan 2023 Active
Public Notice
Other Violation 0
Jan 2023 Active
Public Notice
Other Violation 0
Oct 2021 Active
Consumer Confidence Rule
Other Violation 0
Oct 2020 Active
Consumer Confidence Rule
Other Violation 0
Sep 2019 Active
Public Notice
Other Violation 0
Nov 2018 Active
Public Notice
Other Violation 0
Jul 2018 Active
Consumer Confidence Rule
Other Violation 0
Oct 2014 Active
Public Notice
Other Violation 0
May 2013 Active
Public Notice
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jul 2024 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Sep 2024
Jul 2024 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Sep 2024
Oct 2023 Resolved
Groundwater Rule
Treatment Technique
Health-Based Health Resolved Oct 2023
Showing 20 of 146 violations
Industrial pollution

Top industrial polluters within 10 miles of Montgomery

Industrial polluters nearby

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

Total reported releases to surface water: 4,302 lbs

FacilityTop chemicalTo surface water (lbs/yr)Distance
GOLD BOND BUILDING PRODUCTS - MILTON
Paper · SPANGLER COS INC
NEW COLUMBIA, PA17856
Thiabendazole4,2768.4 mi
HOEGANAES CORP
Primary Metals · GKN POWDER METALLURGY HOLDINGS INC
WATSONTOWN, PA17777
Zinc compounds168.2 mi
KOPPERS INC (SUSQUEHANNA)
Wood Products · KOPPERS INC
MONTGOMERY, PA17752
Creosote102.1 mi
STELLANT SYSTEMS LLC.
Computers and Electronic Products · ARLINGTON CAPITAL PARTNERS
WILLIAMSPORT, PA17701
7.2 mi
CHAMPIONX-HUGHESVILLE
Chemical Wholesalers · CHAMPIONX CORP
HUGHESVILLE, PA17737
8.1 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

10
Declared disasters
Dec 2016
Most recent
Flood
Most common type

Lycoming County has experienced 10 federally declared disasters since 1972. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Dec 2016
SEVERE STORMS AND FLOODING
Flood FEMA #4292
Oct 2012
HURRICANE SANDY
Hurricane FEMA #3356
Sep 2011
TROPICAL STORM LEE
Flood FEMA #4030
Sep 2011
REMNANTS OF TROPICAL STORM LEE
Flood FEMA #3340
Sep 2005
HURRICANE KATRINA
Hurricane FEMA #3235
Sep 2004
TROPICAL DEPRESSION IVAN
Hurricane FEMA #1557

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 5.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 2.0 ppb from 1993 (7.0 ppb) to 1996 (5.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
2,700
Water Systems
1
Water Source

Where Montgomery's water comes from

Groundwater

Montgomery's drinking water is drawn from underground aquifers through wells.

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 local government ownership and serves approximately 2,700 people through 1 water system.

Local Hydrology

Water bodies near Montgomery

Montgomery is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Wb Susquehanna River At Williamsport
river
Muncy Creek Near Muncy
river
West Branch Susquehanna River At Allenwood
river
Infrastructure

Water systems serving Montgomery

System Name PWSID Population Source
MONTGOMERY WATER AUTHORITY PA4410161 2,700 GW
Regional Comparison

How Montgomery compares

Full Pennsylvania rankings →

Montgomery's score of 50/100 is on par with the average of 49/100 among major Pennsylvania cities. It outscores 8 of 10 nearby cities.

Montgomery (this city)
50
Bryn Mawr
34.2
Mcmurray
86.8
Greensburg
46.7
Pennsylvania avg
49
City Profile

About Montgomery, PA

Wikipedia →

Montgomery is a borough in Lycoming County, Pennsylvania, United States. The population was 1,570 at the 2020 census. It is part of the Williamsport, Pennsylvania Metropolitan Statistical Area.

Economic Profile
$54,250
Median Income
$122,094
Median Home Value
$870/mo
Median Rent
6.2%
Unemployment
Community
31.2
Median Age
1,004
People / sq mi
15%
College Educated
61.2%
Homeownership
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Frequently asked questions

Is Montgomery, PA tap water safe to drink?

Montgomery's water quality earned a grade of D+ (50/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #325 out of 560 cities tested in Pennsylvania.

What contaminants are in Montgomery's water?

Lead was measured at 5.0 ppb (90th percentile). 146 violations are on record.

How is Montgomery'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 Montgomery?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Montgomery's water come from?

Montgomery's water is sourced from Groundwater. The city has 1 water system serving approximately 2,700 residents.

What health violations has Montgomery's water system had?

Montgomery has 6 health-based violations on record. The most recent violation was recorded in July 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 17 violations remain unresolved.

Is Montgomery's groundwater at risk of contamination?

Montgomery 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 146 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 Montgomery's water compare to other cities?

Montgomery ranks #325 out of 560 cities in Pennsylvania (better than 42% of state cities) and #13098 out of 15744 cities nationally (17th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Montgomery's small water system affect quality?

Montgomery's system serves approximately 2,700 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 146 violations on record.