Tapcensus

Beryllium violations in Washington

21 active public water systems in Washington had a Beryllium violation in the past three years. What Beryllium is and why it matters.

Health effects: Chronic oral exposure to beryllium is associated with intestinal lesions and bone damage. EPA classifies beryllium as a probable human carcinogen (Group B2) based on animal evidence and limited human data. Occupational inhalation exposure causes a distinct lung disease (berylliosis), but the oral route primarily targets the GI tract and bone.

Systems with a Beryllium violation

Unresolved first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Wellpinit
Wellpinit · County
525 6 2
Kahlotus City of
Franklin County
262 4 1
Washtucna Water Department
Adams County
250 4 0
Fort Simcoe Job Corps Ctr
Toppenish · County
230 8 1
Trails End Water District
Mason County
211 6 0
Red Mountain Water Association
Benton County
200 5 0
Trophy Lake Golf Course
Kitsap County
163 6 1
Chief Kitsap Academy
Poulsbo · County
120 6 0
Centerville Grade School
Klickitat County
115 3 0
North Lopez Service
San Juan County
114 4 0
Potlatch Beach Mutual
Mason County
109 3 0
Marble Water System
Stevens County
94 7 1
Lake Wenatchee Water District
Chelan County
86 3 0
Alpine Acres Community Association
Chelan County
51 6 0
Holiday Hills Community Club INC
Pierce County
50 4 0
Pleasant Harbor Marina
Jefferson County
50 4 0
Maple Hill Park
Island County
35 4 0
Faranda Water Associaton
Island County
28 6 1
Trails West Subdivision
Stevens County
27 7 1
Twin Pines Mobile Home Park
Okanogan County
25 7 1
Winlock Waters 2
Lewis County
25 4 0
About this data

A system is counted once if any of its violations in the past three years involved Beryllium, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Beryllium alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Washington records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.