Wells or soil borings are often constructed to investigate subsurface conditions of a property where there may have been contamination by hazardous materials or hazardous waste. In addition wells and soil borings may be constructed to monitor water levels or to provide geotechnical data.

Each well or soil boring constructed creates a route for current or future contamination to travel from the ground surface to lower levels or between soil horizons and/or groundwater aquifers.

The goal of this program is to insure wells and borings are properly constructed to protect groundwater or soil horizons from being contaminated by other layers or future spills at the ground surface. To accomplish this, a permit application and inspection is required for installation, abandonment, or modification of all wells and borings that will be drilled to groundwater, or to a depth of 20 feet or greater where groundwater is more than 20 feet below the ground surface.

All wells must be permitted including but not limited to: monitoring wells, vapor wells, extraction wells, sparging wells, bioventing wells, cathodic wells.

Soil borings must be permitted if 20 feet or greater in depth or anytime that groundwater is encountered.

For projects on multiple parcels, a separate permit application is required for each parcel. Distinct projects on multiple parcels may pay fees as if the project was only on one parcel.

Tremie is required anytime that groundwater is encountered or exceeding 20 feet for a dry boring.

A Monitoring Well/Soil Boring application must be filled out completely with the correct fee paid. The turnaround time is generally two weeks. Permits are valid for one year from the date of approval.

For wells: a well construction diagram and map(s) showing where the wells will be located on site and the location of the site, workplan or a copy of the letter from a regulatory agency approving or directing work. A workplan approved by the State Water Resources Control Board is required if the property is documented as being a contaminated site.

For soil borings: map(s) showing where the borings will be located on site and the location of the site, workplan or regulatory agency letter when needed. A workplan approved by the State Water Resources Control Board is required if the property is documented as being a contaminated site.

Our fee schedule can be found here: Environmental Health Fees. For projects that involve 4 or more soil borings, the initial fee is for the first 4 borings. Additional time will be billed on an hourly basis. This only applies to exploratory soil borings, not with wells.

A 48 hour notification is required for all grout inspections. Please call (530) 666-8646 to schedule and ask for the inspector who approved the permit.