US Navy Aux Landing Field

Facility Overview

US Navy Aux Landing Field is operating under a active permit of type: Industrial. Primary industry: Air Transportation, Scheduled. Secondary industry: Refuse Systems.

The facility covers a total area of 36500 Acres, with an active operational area of 40 Acres.

The site has self-reported imperviousness of %. 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 indirectly affects the Pacific Ocean. This information is crucial for understanding the facility's potential environmental influence on local water resources.

San Clemente Island, San Clemente Island, CA 90731

Additional Details

Permit Status: Active
County: Los Angeles
WDID: 4 19I005692
Application ID: 189530

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.

  • Iron, Total

    Excessive iron can harm aquatic ecosystems by forming precipitates that smother habitats. It can also affect fish gills and reduce visibility in water.

  • 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.

  • Aluminum, Total

    Aluminum can be toxic to aquatic life, particularly in acidic conditions. It can accumulate in fish gills and affect their ability to take in oxygen.

  • Selenium, Total

    Selenium can bioaccumulate in aquatic ecosystems, causing reproductive failure and deformities in fish and aquatic birds.

  • Magnesium, Total

    While essential in small amounts, excessive magnesium can contribute to water hardness, affecting aquatic life and ecosystem balance.

  • Aluminum, Total Recoverable

    Aluminum can be toxic to aquatic life, particularly in acidic conditions. It can accumulate in fish gills and affect their ability to take in oxygen.

  • 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
202464Exceedances Detected
202231Exceedances Detected
202111Exceedances Detected
202054Exceedances Detected
201943Exceedances Detected
20171220Exceedances 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.