Sherwin Williams Company

Facility Overview

Sherwin Williams Company is operating under a active permit of type: Industrial. Primary industry: Paints, Varnishes, Lacquers, Enamels, and Allied Products.

The facility covers a total area of 70124 SqFt, with an active operational area of 18306 Sqft.

The site has self-reported imperviousness of 98%. In the context of the Industrial General Permit for stormwater runoff, imperviousness refers to the percentage of the facility's surface area that doesn't allow water to penetrate, such as concrete, asphalt, or rooftops. The higher the imperviousness percentage, the more potential impact on local water quality as there is a greater surface area to accumulate pollutants.

In terms of water impact, this facility directly affects the Day Creek Channel to Santa Ana River. This information is crucial for understanding the facility's potential environmental influence on local water resources.

5526 Ontario Mills Parkway, Ontario, CA 91764

Additional Details

Permit Status: Active
County: San Bernardino
WDID: 8 36I027728
Application ID: 493859

Historical Exceedances

This facility has historically exceeded limits for the following parameters:

  • Total Suspended Solids (TSS)

    High levels of suspended solids can reduce water clarity, harm fish gills, smother aquatic habitat and eggs, and transport pollutants through water bodies.

These limits reflect Water Quality Standards promulgated to protect human health or the environment, or standards that the State or EPA developed to indicate the Facility may be failing to implement best practices to protect storm water.

Discharge Reports Summary

YearSample ReportsExceedancesStatus
202330Up To Date
202220Up To Date
202110Up To Date
202030Up To Date
201930Up To Date
201821Exceedances Detected

Discharge Report Exceedances Trend

This chart shows the trend of discharge report exceedances over time. The values represent the number of exceedances for each year.