TapWaterMap

WA / Pasco

WA · Tap water records

Pasco tap water, in plain English

Here is what the EPA's own data shows about tap water in Pasco. According to EPA SDWIS data retrieved June 2026, Pasco is served by 23 active community water systems, together reported to serve about 119,094 people.

As of June 2026, EPA records show 1,338 violations across the community water system(s) serving Pasco, going back to the earliest EPA record. 39 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.

What the EPA has on record, by system

Pasco Water Department

115,102 served · surface water · PWSID WA5366400

Great Basin Water Burbank

656 served · groundwater · PWSID WA5331477

Oasis Water Corporation

556 served · groundwater · PWSID WA5319069

Burbank Irrigation District 4

527 served · groundwater · PWSID WA5309300

Great Basin Water Kiona

520 served · groundwater · PWSID WA5310724

Red Mountain Water Association

200 served · groundwater · PWSID WA5306091

Clark Addition Water System

189 served · groundwater · PWSID WA53AB809

Southgate Water Company

175 served · groundwater · PWSID WA5356344

Rangeview

122 served · groundwater · PWSID WA53AD017

Conagra Foods Lamb Weston Inc-Farm

107 served · groundwater · PWSID WA5363913

Great Basin Water Sunrise

100 served · groundwater · PWSID WA5385630

North Slope Estates Property

97 served · groundwater · PWSID WA5310761

Hi-Point Housing

96 served · groundwater · PWSID WA53AD259

Canyon Farm Camp

96 served · groundwater · PWSID WA53AD564

Graystone Ws

94 served · groundwater · PWSID WA53AD688

River Ridge Estates

77 served · groundwater · PWSID WA5338792

Predator Ridge

66 served · groundwater · PWSID WA53AD193

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

J & B Orchards - South

63 served · groundwater · PWSID WA5341814

Sunset Domestic Water Assn

60 served · groundwater · PWSID WA5386100

Agrinorthwest Riverbend

59 served · groundwater · PWSID WA5306559

Lakeview

50 served · groundwater · PWSID WA53AD018

Oakdell Farms Llc

47 served · groundwater · PWSID WA5362695

Kepps Acres Association

35 served · groundwater · PWSID WA5317189

What this means

A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.

This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.

Source: U.S. EPA Envirofacts SDWIS, retrieved June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.