EPA-regulated facilities in Placer County, CA

There are 4,660 EPA-regulated facilities inside Placer County, California. The most common kinds are hazardous waste (3,537), air emissions (897), water discharge (331). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 14 have a violation on record. Penalties over the last five years total $5.9M across 6 sites.

Open the map of Placer County

4,660facilities in the county

3in significant noncompliance

14with a violation on record

$5.9Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	3,537
Large quantity generators	65
Small quantity generators	390
Transporters	36
Chemical (RMP/TRI)	29
Superfund	4
Air emissions	897
Major sources	6
Synthetic minor sources	9
Minor sources	28
Water discharge	331
Major permits	7
Minor permits	254
Drinking water systems	145
Greenhouse gas reporters	3
Data centers	3
Scrap yards	1
Recycling centers	4

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

BAKER RANCH WATER COMPANY PO BOX 611, FORESTHILL, CA, 95631 Significant noncompliance
SIERRA PACIFIC INDUSTRIES LINCOLN DIV 1445 NORTH HIGHWAY 65, LINCOLN, CA, 95648 Significant noncompliance
ROSEVILLE AM/PM MINI MART 1139 DOUGLAS BLVD, ROSEVILLE, CA, 95678 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE 2275 SIERRA MEADOWS, ROCKLIN, CA, 95677 $5.3M in penalties
SINISTER MANUFACTURING COMPANY DBA SINISTER DIESEL 2025 OPPORTUNITY DR 7, ROSEVILLE, CA, 95678 $500k in penalties
RIO BRAVO ROCKLIN 3100 THUNDER VALLEY CT, LINCOLN, CA, 95648 $71k in penalties
RECOLOGY AUBURN PLACER 12305 SHALE RIDGE LN, AUBURN, CA, 95602 $6k in penalties
AUBURN WWTP 10441 OPHIR RD, AUBURN, CA, 95603 $3k in penalties

Superfund sites

POLAR STAR MINE 0.5 MI N OF DUTCH FLAT, DUTCH FLAT, CA, 95714
THE CRUZ RANCH 13365 BELL BROOK DRIVE, AUBURN, CA, 95602
VALLEY VIEW MINE 2020 KILAGA SPRINGS DRIVE, LINCOLN, CA, 95648
THUNDER MOUNTAIN TRAIN WRECK SITE NEAR TO INDUSTRIAL AVE, LINCOLN, CA, 95648

Data centers

WILLIAMS-SONOMA, INC - DATA CENTER 3750 ATHERTON RD, ROCKLIN, CA, 95765
GAP - DATA CENTER 695 MENLO DR, ROCKLIN, CA, 95765
TAHOE WAVE RIDERS LLC 6835 N LAKE BLVD, TAHOE VISTA, CA, 96148

Towns in Placer County

Bordering counties

Reading these numbers

These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.