Guadalupe Valley Quarry

Facility Overview

Guadalupe Valley Quarry is operating under a active permit of type: Industrial. Primary industry: Crushed and Broken Stone, NEC. Secondary industry: Concrete Products, Except Block and Brick. Tertiary industry: Asphalt Paving Mixtures and Blocks.

The facility covers a total area of 144.5 Acres, with an active operational area of 60 NA.

The site has self-reported imperviousness of 0.5%. 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 Guadalupe Valley Municipal District. This information is crucial for understanding the facility's potential environmental influence on local water resources.

No 1 Old Quarry Rd, Brisbane, CA 94005

Additional Details

Permit Status: Active
County: San Mateo
WDID: 2 41I022806
Application ID: 407055

Historical Exceedances

This facility has historically exceeded limits for the following parameters:

  • 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.

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
202441Exceedances Detected
202331Exceedances Detected
202210Up To Date
202041Exceedances Detected
201920Up To Date
201830Up To Date
201710Up To Date
201610Up To Date

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.