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Environmental compliance · county

Environmental compliance in Riverside County

21,003 active EPA-regulated sites in Riverside County, California: 100 with an identified violation, 6 in significant violation, 760 inspections and $6.8 million in penalties over five years — EPA ECHO, as of October 18, 2026.

Cite: FACTANKER, https://factanker.com/us/ca/riverside-county/environmental-compliance

How many facilities in Riverside County, California are regulated by the EPA, and how many are in violation (as of October 18, 2026)?

MeasureValue
Active EPA-regulated sites21,003
Sites with an identified violation100
Sites in significant violation6
Inspections and evaluations, last 5 years760
Formal enforcement actions, last 5 years191
Penalties, last 5 years (shared federal cases once)$6.8 million

How many active facilities in Riverside County, California fall under each EPA program?

A facility can be in several programs.

ProgramActive sites
Air (Clean Air Act)75
Water discharge permits (Clean Water Act, NPDES)3,690
Hazardous waste (RCRA)17,526
Drinking water systems (SDWA)193
Toxics Release Inventory reporters47
Greenhouse gas reporters (GHGRP)12

Which large facilities in Riverside County, California does the EPA track, and are they in violation?

FacilityCompliance statusQuarters in violation (of 12)Penalties, 5 years
CORONA ENERGY PARTNERS
Corona, CA
Significant Violation12–
DART CONTAINER CORPORATION OF CALIFORNIA
Corona, CA
Significant Violation12–
QG PRINTING CORPORATION
Riverside, CA
Significant Violation12–
WESTERN RIVERSIDE CO REG WWTP
Corona, CA
No Violation Identified9$294,000
METAL CONTAINER CORP
Mira Loma, CA
No Violation Identified7–
REGIONWIDE WATER RECYCLING SYSTEM - TEMESCAL CREEK DISCHARGE
Lake Elsinore, CA
Unknown7–
FENDER MUSICAL INSTRUMENTS CORP
Corona, CA
No Violation Identified6–
RIVERSIDE REGIONAL WATER QUALITY CONTROL PLANT
Riverside, CA
No Violation Identified6–
CENTRAL WIRE GROUP
Perris, CA
Violation Identified4–
HENRY N. WOCHHOLZ WASTEWATER TREATMENT FACILITY
Yucaipa, CA
Violation Identified4–
VALLEY SANITARY DISTRICT WWTP
Indio, CA
Violation Identified4$15,000
BEAUMONT WWTF
Beaumont, CA
Unknown3–
COACHELLA SD WWTP
Coachella, CA
Violation Identified3–
CORONA WWTP 1
Corona, CA
Unknown3$177,000
NEW BASIS (FRMLY ASSOCIATED PLASTICS)
Riverside, CA
No Violation Identified2–
REGIONAL WASTEWATER FACILITY
Lake Elsinore, CA
Unknown2–
ROHR INC OPERATING AS GOODRICH AEROSTRUCTURES A UTC AEROSPACE CO
Riverside, CA
No Violation Identified2–
AOC, LLC
Perris, CA
No Violation Identified1–
SQUARE D COMPANY
Beaumont, CA
No Violation Identified1–
ALL AMERICAN ASPHALT
Corona, CA
No Violation Identified0–
BADLANDS DISPOSAL SITE LANDFILL
Moreno Valley, CA
No Violation Identified0–
BLYTHE ENERGY POWER PLANT
Blythe, CA
No Violation Identified0–
CITY OF RIVERSIDE PUBLIC UTILITIES DEPT
Riverside, CA
No Violation Identified0–
COLMAC ENERGY, INC.
Mecca, CA
No Violation Identified0–
CORONA WWTP #3
Corona, CA
Unknown0–
CPV SENTINEL ENERGY PROJ
Desert Hot Springs, CA
No Violation Identified0–
EL SOBRANTE LANDFILL
Corona, CA
No Violation Identified0–
GUIDANT INC
Temecula, CA
No Violation Identified0–
IMPERIAL IRRIGATION DISTRICT/COACHELLA
Coachella, CA
No Violation Identified0–
INLAND EMPIRE ENERGY CENTER
Romoland, CA
No Violation Identified0–
LAMB CANYON SANITARY LANDFILL
Beaumont, CA
No Violation Identified0–
LUXE CABINETRY LLC
Temecula, CA
No Violation Identified0–
MODTECH HOLDINGS INC
Perris, CA
No Violation Identified0–
PACIFIC CLAY PRODUCTS INC
Lake Elsinore, CA
No Violation Identified0–
PREPRODUCTION PLASTICS INC.
Corona, CA
No Violation Identified0–
RGF ENTERPRISES INC
Corona, CA
No Violation Identified0–
RIVERSIDE CEMENT CO CRESTMORE PLT
Riverside, CA
No Violation Identified0–
RIVERSIDE CO. STORM WATER SYSTEM #1
Riverside, CA
No Violation Identified0–
RIVERSIDE COUNTY MS4
Palm Desert, CA
No Violation Identified0–
SAN BERNARDINO COUNTY SOLID WASTE MGMT
Redlands, CA
No Violation Identified0–
SAN DIEGO GAS & ELECTRIC
Moreno Valley, CA
No Violation Identified0–
SIERRA ALUMINUM CO
Riverside, CA
No Violation Identified0–
SILVER CREEK INDUSTRIES, INC
Perris, CA
No Violation Identified0–
SOUTHERN CALIFORNIA GAS BLYTHE FACILITY
Blythe, CA
No Violation Identified0–
THORO PACKAGING INC
Corona, CA
No Violation Identified0–
UBS PRINTING GROUP
Corona, CA
No Violation Identified0–
UNITED STATES TILE CO CORONA
Corona, CA
No Violation Identified0–
WILDFLOWER ENERGY INDIGO
North Palm Springs, CA
No Violation Identified0–

All figures for Riverside County · California · United States

EPA Enforcement and Compliance History Online (ECHO), weekly national export. Counts cover active sites in the Facility Registry Service; inspections, formal actions and penalties cover the last five years, quarters in violation the last three years. The EPA attributes a case that covers several facilities to each of them; area penalty totals here count an amount shared through the same federal case once, facility figures show the amount attributed to that facility. Large facilities are Clean Air Act majors, Clean Water Act majors and large hazardous waste generators or handlers. Source record.

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