Merryvale Vineyards

Facility Overview

Merryvale Vineyards is operating under a active permit of type: Industrial. Primary industry: Wines, Brandy, and Brandy Spirits.

The facility covers a total area of 0.9 Acres, with an active operational area of 0.5 Acres.

The site has self-reported imperviousness of 100%. 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 Sulphur Creek to Napa River. This information is crucial for understanding the facility's potential environmental influence on local water resources.

1000 Main St, Saint Helena, CA 94574

Additional Details

Permit Status: Active
County: Napa
WDID: 2 28I005088
Application ID: 182421

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
202410Up To Date
202320Up To Date
202120Up To Date
202010Up To Date
201910Up To Date
201720Up To Date
201631Exceedances 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.