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Clean Air Act stationary source · ICIS-AIR WAPSC0000000025994

CEDAR GROVE COMPOST CO, Maple Valley, WA: Clean Air Act compliance record, inspections, violations, penalties

CEDAR GROVE COMPOST CO, at 17825 CEDAR GROVE RD, Maple Valley in King County, Washington, is an operating minor source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. King County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filedCEDAR GROVE COMPOST CO
ICIS-AIR IDWAPSC0000000025994
EPA facility registry ID110005405285
Operating statusOperating
Emissions classificationMinor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address17825 CEDAR GROVE RD, Maple Valley, WA 98038
CountyKing County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Chemical manufacturing (NAICS 3253)
EPA region10
Local air agencyPuget Sound Clean Air Agency

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs CEDAR GROVE COMPOST CO is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

The newest 50 of 844.

DateWhat EPA recordedAgencyPrograms
July 21, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
July 9, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
June 24, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
June 24, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
June 24, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
June 24, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
June 24, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
June 24, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
May 11, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
May 11, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
May 11, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
May 11, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
May 11, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
May 11, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
May 8, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
March 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
March 13, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
March 13, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
February 27, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 19, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
February 19, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 18, 2026PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)
February 5, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
January 26, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
January 26, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
January 26, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
January 26, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
January 26, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
January 26, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
January 26, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
January 26, 2026PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
December 16, 2025PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
December 16, 2025PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
December 12, 2025PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
November 20, 2025PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
November 20, 2025PCE Off-SiteLocalMACT Standards (40 CFR Part 63)
October 24, 2025PCE On-Site Record/Report ReviewLocalMACT Standards (40 CFR Part 63)

Violations

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

EPA’s violation history file holds no violation for ICIS-AIR WAPSC0000000025994 since January 1, 2017.

Enforcement and penalties

7 formal enforcement actions since January 1, 2017, 5 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

DateWhat EPA recordedAgencyPenalty, as filed
December 2, 2020Administrative OrderLocal$12,000
December 2, 2020Administrative OrderLocal$12,000
March 4, 2020Administrative OrderLocal$12,000
March 4, 2020Administrative OrderLocal$0
March 4, 2020Administrative OrderLocal$12,000
March 4, 2020Administrative OrderLocal$12,000
March 4, 2020Administrative OrderLocal$0

Informal enforcement

DateWhat EPA recordedAgency
June 30, 2026Notice of ViolationLocal
June 30, 2026Notice of ViolationLocal
March 11, 2026Notice of ViolationLocal
March 11, 2026Notice of ViolationLocal
March 11, 2026Notice of ViolationLocal
March 11, 2026Notice of ViolationLocal
October 29, 2025Warning LetterLocal
September 12, 2025Warning LetterLocal
July 14, 2025Notice of ViolationLocal
January 8, 2025Notice of ViolationLocal
December 26, 2024Notice of ViolationLocal
November 7, 2024Notice of ViolationLocal
May 31, 2024Notice of ViolationLocal
September 29, 2023Notice of ViolationLocal
July 6, 2023Notice of ViolationLocal
April 20, 2023Notice of ViolationLocal
February 21, 2023Notice of ViolationLocal
February 21, 2023Notice of ViolationLocal
February 17, 2023Notice of ViolationLocal
June 24, 2022Warning LetterLocal
September 14, 2021Notice of ViolationLocal
August 2, 2021Notice of ViolationLocal
June 15, 2021Notice of ViolationState
March 22, 2021Notice of ViolationLocal
July 24, 2020Notice of ViolationLocal
July 20, 2020Notice of ViolationLocal
July 20, 2020Notice of ViolationLocal
July 20, 2020Notice of ViolationLocal
July 20, 2020Notice of ViolationLocal
July 20, 2020Notice of ViolationLocal
July 20, 2020Notice of ViolationLocal
July 2, 2020Notice of ViolationLocal
March 12, 2020Notice of ViolationLocal
February 28, 2020Notice of ViolationLocal
February 27, 2020Notice of ViolationLocal
February 24, 2020Warning LetterLocal

Stack tests

DateWhat EPA recordedAgency
February 20, 2026PassLocal
February 20, 2026PassLocal
October 6, 2025PassLocal
October 6, 2025PassLocal
February 3, 2025FailLocal
February 3, 2025FailLocal
November 6, 2024FailLocal
November 6, 2024FailLocal
August 7, 2024FailLocal
August 7, 2024FailLocal
May 8, 2024FailLocal
May 8, 2024FailLocal
February 7, 2024FailLocal
February 7, 2024FailLocal
November 8, 2023FailLocal
November 8, 2023FailLocal
August 3, 2023PassLocal
August 2, 2023FailLocal
May 10, 2023FailLocal
May 10, 2023FailLocal
February 20, 2023FailLocal
December 6, 2022FailLocal
August 10, 2022FailLocal
May 4, 2022FailLocal
February 9, 2022FailLocal
November 2, 2021FailLocal
August 3, 2021FailLocal
May 4, 2021FailLocal
February 2, 2021FailLocal
November 10, 2020FailLocal
August 6, 2020FailLocal

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110005405285 there.

Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.