WaterVerge

Is Graham, WA Tap Water Safe to Drink?

Graded A, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 3 water systems PWSID: WA5328650
Overall Score
90.5 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#37 of 294 in Washington Top 14% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
90.5/100
waterverge.com
A 90.5/100

Graham, WA — Water Quality Report

Graham's drinking water received a grade of A (90.5 out of 100), indicating excellent water quality. The city's 3 water systems serve approximately 1,759 residents using groundwater.

Lead levels were measured at 0.0 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 39 violations on record, including 5 health-based violations. 5 remain unresolved.

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

What to know about Graham's water

Graham ranks #37 out of 294 cities in Washington for water quality, placing it above average in the state.

Graham 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, Graham may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
90.5 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
40.5/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 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 Graham, WA water safe to drink?

Concerns Identified

Graham's drinking water has significant quality concerns based on EPA testing data. With a grade of A (90.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 1,759 residents using groundwater (wells).

5
Active Violations
0.0 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Graham

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Graham's water quality assessment. Grade: A (90.5/100).

Disaster
SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-3629). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Nitrate.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Coliform (TCR).

Disaster
SEVERE WINTER STORM, LANDSLIDES, MUDSLIDES, AND FLOODING

Federal disaster declaration (FEMA DR-1817). Flood event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Graham's water system has 39 total violations on record, including 5 health-based violations. 5 remain unresolved. 1 violation was issued in the last 5 years.

OtherMRMCL
Most recent violations:
Jul 2023 Consumer Confidence Rule Open
Jan 2017 Nitrate Resolved
Dec 2015 Coliform (TCR) Resolved
Jan 2009 Nitrate Resolved
Jan 2008 OXAMYL Resolved

Flood & environmental risk

Pierce 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 North Fork Clover Creek, Puyallup River, Swan Creek.

SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-3629
SEVERE WINTER STORM, LANDSLIDES, MUDSLIDES, AND FLOODING
Flood FEMA DR-1817
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA DR-3227

Where does Graham's water come from?

Graham's drinking water comes from groundwater (wells), supplied by 3 water systems serving approximately 1,759 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include North Fork Clover Creek (river), Puyallup River (river), Swan Creek (river).

What Graham residents can do

Install a water filter

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

Graham'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
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

39
Total violations
5
Health-based
5
Active / unresolved
Jul 2023
Most recent violation
Compliance Record

Violations & advisories

39 Total
5 Active
5 Health-based
34 Resolved
Violations by category
Synthetic Organic Chemicals
10
Total Coliform Rule
9
Inorganic Chemicals
6
Nitrate Rule
3
Lead and Copper Rule
3
Jul 2023 Active
Consumer Confidence Rule
Other Violation 0
Jan 2007 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2007 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Jan 2017 Resolved
Nitrate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2017
Dec 2015 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Dec 2015
Jan 2009 Resolved
Nitrate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2009
Jan 2008 Resolved
OXAMYL
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Aldicarb sulfoxide
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Aldicarb sulfoxide
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Aldicarb
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Aldicarb sulfone
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Aldicarb
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
OXAMYL
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Carbofuran
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Aldicarb sulfone
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Carbofuran
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Apr 2006 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 2006
Oct 2004 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 2004
Showing 20 of 39 violations
Industrial pollution

Top industrial polluters within 10 miles of Graham

Industrial polluters nearby

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

Total reported releases to surface water: 0 lbs

FacilityTop chemicalTo surface water (lbs/yr)Distance
CENTRAL PREMIX CONCRETE PRODUCTS CO
Nonmetallic Mineral Product · CRH AMERICAS INC
TACOMA, WA98446
Lead05.6 mi
BOEING COMMERCIAL AIRPLANES-FREDERICKSON
Transportation Equipment · THE BOEING CO
PUYALLUP, WA98375
5.5 mi
CARLISLE CONSTRUCTION MATERIALS LLC
Plastics and Rubber · CARLISLE COS INC
PUYALLUP, WA98375
4.9 mi
JAMES HARDIE BUILDING PRODUCTS TACOMA
Nonmetallic Mineral Product · JAMES HARDIE BUILDING PRODUCTS INC
TACOMA, WA98446
5.7 mi
TORAY COMPOSITE MATERIALS AMERICA
Electrical Equipment · TORAY INDUSTRIES (AMERICA) INC
TACOMA, WA98446
5.3 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Site context

Superfund sites within 10 miles of Graham

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

10
Declared disasters
Dec 2025
Most recent
Flood
Most common type

Pierce 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 2025
SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #3629
Jan 2009
SEVERE WINTER STORM, LANDSLIDES, MUDSLIDES, AND FLOODING
Flood FEMA #1817
Sep 2005
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA #3227
Feb 1996
HIGH WINDS, SEVERE STORMS AND FLOODING
Flood FEMA #1100
Mar 1991
SEVERE STORMS & HIGH TIDES
Flood FEMA #896
Nov 1990
SEVERE STORMS & FLOODING
Flood FEMA #883

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 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 3.0 ppb from 1993 (6.0 ppb) to 2025 (3.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
1,759
Water Systems
3
Water Source

Where Graham's water comes from

Groundwater

Graham'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 private ownership and serves approximately 1,759 people through 3 water systems.

Local Hydrology

Water bodies near Graham

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

North Fork Clover Creek
river
Puyallup River
river
Swan Creek
river
Infrastructure

Water systems serving Graham

System Name PWSID Population Source
GRAHAM HILL MUTUAL WATER CO INC WA5328650 1,474 GW
MERIDIAN TERRACE MOBILE HOME PARK WA5351823 229 GW
MOUNTAIN HIGHWAY APARTMENTS WA5326955 56 GW
Regional Comparison

How Graham compares

Full Washington rankings →

Graham's score of 90.5/100 is above the average of 53/100 among major Washington cities. It outscores 9 of 10 nearby cities.

Graham (this city)
90.5
Seattle
42.3
Tacoma
32.2
Vancouver
32.9
Spokane
39.2
Kent
44.4
Washington avg
53
City Profile

About Graham, WA

Economic Profile
$110,024
Median Income
$427,643
Median Home Value
$1,949/mo
Median Rent
5.8%
Unemployment
Community
35.2
Median Age
315
People / sq mi
19.9%
College Educated
82.5%
Homeownership
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Frequently asked questions

Is Graham, WA tap water safe to drink?

Graham's water quality earned a grade of A (90.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #37 out of 294 cities tested in Washington.

What contaminants are in Graham's water?

Lead was measured at 0.0 ppb (90th percentile). 39 violations are on record.

How is Graham'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 Graham?

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

Where does Graham's water come from?

Graham's water is sourced from Groundwater. The city has 3 water systems serving approximately 1,759 residents.

What health violations has Graham's water system had?

Graham has 5 health-based violations on record. The most recent violation was recorded in July 2023. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.

Is Graham's groundwater at risk of contamination?

Graham 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 39 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 Graham's water compare to other cities?

Graham ranks #37 out of 294 cities in Washington (better than 87% of state cities) and #2195 out of 15744 cities nationally (86th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.