WaterVerge

Is Harrah, WA Tap Water Safe to Drink?

Graded A, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

1K residents served 1 water system PWSID: WA5331400
Overall Score
90.8 / 100
Violations
2 active
Last Updated
May 2026
Source
Groundwater
#33 of 294 in Washington Top 13% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
90.8/100
waterverge.com
A 90.8/100

Harrah, WA — Water Quality Report

Harrah's drinking water received a grade of A (90.8 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,304 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 21 violations on record, including 5 health-based violations. 2 remain unresolved.

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

What to know about Harrah's water

Harrah ranks #33 out of 294 cities in Washington for water quality, placing it above average in the state.

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

Quality Breakdown

Water quality score

See methodology →
90.8 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
40.8/45
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 Harrah, WA water safe to drink?

Use Caution

Harrah's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (90.8/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,304 residents using groundwater (wells).

2
Active Violations
0.0 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Harrah

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Harrah's water quality assessment. Grade: A (90.8/100).

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
2 drinking water violations recorded

Contaminants: TTHM, Total Haloacetic Acids (HAA5).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
2 drinking water violations recorded

Contaminants: Total Haloacetic Acids (HAA5), TTHM.

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 Harrah's water supply.

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

Well within EPA limits.

Violation history

Harrah's water system has 21 total violations on record, including 5 health-based violations. 2 remain unresolved. 2 violations were issued in the last 5 years.

MROtherMCL
Most recent violations:
Jan 2025 TTHM Resolved
Jan 2025 Total Haloacetic Acids (HAA5) Resolved
Jul 2018 Consumer Confidence Rule Open
Jan 2018 Total Haloacetic Acids (HAA5) Resolved
Jan 2018 TTHM Resolved

Flood & environmental risk

Yakima County has experienced 10 federally declared disasters since 1964. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

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 Harrah's water come from?

Harrah's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,304 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Harrah residents can do

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

Harrah'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

21
Total violations
5
Health-based
2
Active / unresolved
Jan 2025
Most recent violation
Compliance Record

Violations & advisories

21 Total
2 Active
5 Health-based
19 Resolved
2 SNC
Violations by category
Total Coliform Rule
14
Stage 2 Disinfectants and Disinfection Byproducts Rule
4
Consumer Confidence Rule
2
Lead and Copper Rule
1
Jul 2018 Active
Consumer Confidence Rule
Other Violation 0
Jan 2000 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2025 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2025
Jan 2025 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2025
Jan 2018 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2018
Jan 2018 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2018
Aug 2000 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Aug 2000
Jul 2000 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2000
Oct 1999 Resolved
Consumer Confidence Rule
Other Violation Resolved Dec 1999
Aug 1997 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Aug 1997
Jul 1993 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 1993
Dec 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 1992
Nov 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 1992
Oct 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 1992
Sep 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 1992
Jun 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 1992
May 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved May 1992
Apr 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 1992
Nov 1991 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 1991
Nov 1991 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 1991
Showing 20 of 21 violations
Industrial pollution

Top industrial polluters within 10 miles of Harrah

Industrial polluters nearby

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

FacilityTop chemicalTo surface water (lbs/yr)Distance
MCCLARIN PLASTICS LLC
Plastics and Rubber · MCCLARIN PLASTICS LLC
WAPATO, WA98951
6.5 mi
PACE INTERNATIONAL LLC
Chemicals · AGROFRESH SOLUTIONS INC
WAPATO, WA98951
2.1 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D1 — moderate drought

Yakima County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

27.6%
Months in D2+ (last 30y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

10
Declared disasters
Dec 2025
Most recent
Flood
Most common type

Yakima County has experienced 10 federally declared disasters since 1964. 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
Nov 1990
SEVERE STORMS & FLOODING
Flood FEMA #883
Dec 1977
SEVERE STORMS,MUDSLIDES, & FLOODING
Flood FEMA #545

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 4.0 ppb from 1993 (4.0 ppb) to 2023 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
1,304
Water Systems
1
Water Source

Where Harrah's water comes from

Groundwater

Harrah'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 1,304 people through 1 water system.

Infrastructure

Water systems serving Harrah

System Name PWSID Population Source
HARRAH WATER SYSTEM WA5331400 1,304 GW
Regional Comparison

How Harrah compares

Full Washington rankings →

Harrah's score of 90.8/100 is above the average of 53/100 among major Washington cities. It outscores 9 of 10 nearby cities.

Harrah (this city)
90.8
Seattle
42.3
Tacoma
32.2
Vancouver
32.9
Spokane
39.2
Kent
44.4
Washington avg
53
City Profile

About Harrah, WA

Wikipedia →

Harrah is a town in Yakima County, Washington, United States. The population was 585 at the 2020 census. It is on the Yakama Indian Reservation.

Economic Profile
$68,333
Median Income
$159,371
Median Home Value
$864/mo
Median Rent
11.6%
Unemployment
Community
35.2
Median Age
447
People / sq mi
14.4%
College Educated
65.2%
Homeownership
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Frequently asked questions

Is Harrah, WA tap water safe to drink?

Harrah's water quality earned a grade of A (90.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #33 out of 294 cities tested in Washington.

What contaminants are in Harrah's water?

Lead was measured at 0.0 ppb (90th percentile). 21 violations are on record.

How is Harrah'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 Harrah?

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

Where does Harrah's water come from?

Harrah's water is sourced from Groundwater. The city has 1 water system serving approximately 1,304 residents.

What health violations has Harrah's water system had?

Harrah has 5 health-based violations on record. The most recent violation was recorded in January 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.

Is Harrah's groundwater at risk of contamination?

Harrah 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 21 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 Harrah's water compare to other cities?

Harrah ranks #33 out of 294 cities in Washington (better than 89% of state cities) and #2049 out of 15744 cities nationally (87th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Harrah's small water system affect quality?

Harrah's system serves approximately 1,304 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 21 violations on record.