Waterman Supply Company

Facility Overview

Waterman Supply Company is operating under a active permit of type: Industrial. Primary industry: Fabricated Metal Products, NEC.

The facility covers a total area of 3.8 Acres, with an active operational area of 2.8 Acres.

The site has self-reported imperviousness of 99%. 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 Los Angeles Harbor Consolidated Slip. This information is crucial for understanding the facility's potential environmental influence on local water resources.

910 Mahar Avenue, Wilmington, CA 90744

Additional Details

Permit Status: Active
County: Los Angeles
WDID: 4 19I030549
Application ID: 566967

Historical Exceedances

This facility has historically exceeded limits for the following parameters:

  • pH

    pH levels outside the normal range can harm aquatic life and affect water chemistry. Acidic water can leach toxic metals from sediments, while alkaline water can increase ammonia toxicity.

  • Zinc, Total

    Excessive zinc can be toxic to aquatic organisms, particularly fish. It can accumulate in sediments and aquatic life, potentially affecting the entire food chain.

  • Oil and Grease

    Oil and grease can form films on water surfaces, reducing oxygen levels and harming aquatic life. They can also contaminate sediments and be toxic to organisms.

  • Nitrite Plus Nitrate (as N)

    High levels contribute to nutrient pollution, leading to algal blooms, oxygen depletion, and potential toxic conditions for aquatic life.

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
202475Exceedances 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.