WaterVerge

Is Malaga, WA Tap Water Safe to Drink?

Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

3K residents served 2 water systems PWSID: WA5350500
Overall Score
92.5 / 100
Violations
3 active
Last Updated
May 2026
Source
Groundwater
#24 of 294 in Washington Top 8% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
92.5/100
waterverge.com
A 92.5/100

Malaga, WA — Water Quality Report

Malaga's drinking water received a grade of A (92.5 out of 100), indicating excellent water quality. The city's 2 water systems serve approximately 3,128 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 28 violations on record, including 6 health-based violations. 3 remain unresolved.

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

What to know about Malaga's water

Malaga ranks #24 out of 294 cities in Washington for water quality, placing it one of the best in the state.

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

Quality Breakdown

Water quality score

See methodology →
92.5 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
42.5/45
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 Malaga, WA water safe to drink?

Concerns Identified

Malaga's drinking water has significant quality concerns based on EPA testing data. With a grade of A (92.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 3,128 residents using groundwater (wells).

3
Active Violations
0.0 ppb
Lead (90th %ile)
6 events
Disaster History

Recent water quality updates for Malaga

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Malaga's water quality assessment. Grade: A (92.5/100).

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

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

Disaster
SEVERE WINTER STORMS, SNOWSTORMS, STRAIGHT-LINE WINDS, FLOODIN

Federal disaster declaration (FEMA DR-4650). 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: Coliform (TCR).

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Key contaminant findings

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

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

Well within EPA limits.

Violation history

Malaga's water system has 28 total violations on record, including 6 health-based violations. 3 remain unresolved.

OtherMRMCL
Most recent violations:
Jul 2018 Consumer Confidence Rule Open
Jun 2012 Coliform (TCR) Resolved
Apr 2010 Coliform (TCR) Resolved
Oct 2006 Coliform (TCR) Resolved
Jan 2006 Lead and Copper Rule Open

Flood & environmental risk

Chelan County has experienced 6 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 Rock Island Dam Pp North, Rock Island Pp Tw Unit 1.

SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-3629
SEVERE WINTER STORMS, SNOWSTORMS, STRAIGHT-LINE WINDS, FLOODIN
Flood FEMA DR-4650
SEVERE WINTER STORM, LANDSLIDES, MUDSLIDES, AND FLOODING
Flood FEMA DR-1817

Where does Malaga's water come from?

Malaga's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 3,128 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Rock Island Dam Pp North (lake), Rock Island Pp Tw Unit 1 (river).

What Malaga residents can do

Install a water filter

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

Malaga'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

28
Total violations
6
Health-based
3
Active / unresolved
Jul 2018
Most recent violation
Compliance Record

Violations & advisories

28 Total
3 Active
6 Health-based
25 Resolved
Violations by category
Total Coliform Rule
14
Inorganic Chemicals
6
Lead and Copper Rule
2
Radionuclides and Revised Rad Rule
2
Consumer Confidence Rule
1
Jul 2018 Active
Consumer Confidence Rule
Other Violation 0
Jan 2006 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Jun 2012 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2012
Apr 2010 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 2010
Oct 2006 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 2006
Jan 2000 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 2001
Aug 1998 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Aug 1998
Jul 1998 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 1998
Jun 1998 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 1998
Jun 1997 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 1997
Nov 1995 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 1995
Aug 1995 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 1995
Oct 1994 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 1994
Sep 1994 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 1994
Oct 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 1992
Dec 1991 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 1991
Nov 1991 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 1991
Oct 1979 Resolved
Arsenic
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 1979
Oct 1979 Resolved
Cadmium
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 1979
Showing 20 of 28 violations
Environmental Risk

Drought conditions

D1 — moderate drought

Chelan 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.

24.3%
Months in D2+ (last 30y)

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

Environmental Risk

Flood & disaster history

6
Declared disasters
Dec 2025
Most recent
Flood
Most common type

Chelan County has experienced 6 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
Mar 2022
SEVERE WINTER STORMS, SNOWSTORMS, STRAIGHT-LINE WINDS, FLOODIN
Flood FEMA #4650
Jan 2009
SEVERE WINTER STORM, LANDSLIDES, MUDSLIDES, AND FLOODING
Flood FEMA #1817
Sep 2005
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA #3227
Nov 1990
SEVERE STORMS & FLOODING
Flood FEMA #883
Jun 1972
SEVERE STORMS & FLOODING
Flood FEMA #334

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 (3.0 ppb) to 2024 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
3,128
Water Systems
2
Water Source

Where Malaga's water comes from

Groundwater

Malaga'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 3,128 people through 2 water systems.

Local Hydrology

Water bodies near Malaga

Malaga is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Rock Island Dam Pp North
lake
Rock Island Pp Tw Unit 1
river
Infrastructure

Water systems serving Malaga

System Name PWSID Population Source
MALAGA WATER DISTRICT WA5350500 2,478 GW
THREE LAKES WATER DISTRICT WA5388140 650 GW
Regional Comparison

How Malaga compares

Full Washington rankings →

Malaga's score of 92.5/100 is above the average of 53/100 among major Washington cities. It outscores 10 of 10 nearby cities.

Malaga (this city)
92.5
Seattle
42.3
Tacoma
32.2
Vancouver
32.9
Spokane
39.2
Kent
44.4
Washington avg
53
City Profile

About Malaga, WA

Wikipedia →

Malaga is an unincorporated community in Chelan County, Washington, United States. Founded in 1903, Malaga is located on the Columbia River 6.5 miles (10.5 km) east-southeast of Wenatchee. Malaga has a post office with ZIP code 98828.

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Frequently asked questions

Is Malaga, WA tap water safe to drink?

Malaga's water quality earned a grade of A (92.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #24 out of 294 cities tested in Washington.

What contaminants are in Malaga's water?

Lead was measured at 0.0 ppb (90th percentile). 28 violations are on record.

How is Malaga'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 Malaga?

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

Where does Malaga's water come from?

Malaga's water is sourced from Groundwater. The city has 2 water systems serving approximately 3,128 residents.

What health violations has Malaga's water system had?

Malaga has 6 health-based violations on record. The most recent violation was recorded in July 2018. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.

Is Malaga's groundwater at risk of contamination?

Malaga 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 28 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 Malaga's water compare to other cities?

Malaga ranks #24 out of 294 cities in Washington (better than 92% of state cities) and #1211 out of 15744 cities nationally (92th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.