Well Decommissioning Services in Corona, CA
Need to properly close an old, unused, or damaged well on your Corona property? Well decommissioning (also called well abandonment or well destruction) is required by California law to protect groundwater quality and ensure public safety.
📋 In This Guide
- Why Decommission a Well?
- Well Decommissioning Process
- Riverside County Regulations
- Cost of Well Decommissioning in Corona
- Related Articles
Southern California Well Service handles the entire decommissioning process for Corona property owners, including permits, proper sealing, and final documentation.
Why Decommission a Well?
- Legal Requirement: California law requires proper abandonment of unused wells
- Groundwater Protection: Open wells can contaminate aquifers
- Safety Hazard: Old wells pose falling risks for children and animals
- Property Sale: Real estate transactions often require well documentation
- New Construction: Building over an old well requires proper abandonment
Well Decommissioning Process
- Permit Application: We obtain required permits from Riverside County
- Well Assessment: Inspect well depth, casing condition, and construction
- Equipment Removal: Remove pump, piping, and electrical components
- Sealing: Fill well with approved grout/cement from bottom to top
- Surface Seal: Concrete cap installed below grade
- Documentation: File completion report with the county
Riverside County Regulations
Riverside County has specific requirements for well abandonment that must be followed precisely. As a licensed C-57 well drilling contractor, we ensure full compliance with:
- California Well Standards (Bulletin 74-90)
- Riverside County Department of Environmental Health (DEH) requirements
- State Water Resources Control Board regulations
Cost of Well Decommissioning in Corona
Well decommissioning costs in Corona typically range from $1,500 to $5,000+ depending on:
- Well depth
- Casing diameter and condition
- Accessibility
- Amount of grout/cement required
We provide free estimates for all Corona well decommissioning projects.
Need Help With Your Well in Corona?
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Our Locations
1077 Main St, Ramona, CA 92065
57174 CA-371 (US Hwy 79), Anza, CA 92539
Well Decommissioning in Corona, California
Corona, the "Circle City" at the western edge of Riverside County, was built on citrus. Before the freeways and master-planned neighborhoods, the Temescal Valley and the land along the Santa Ana River were covered in lemon and orange groves watered by private wells. Many of those agricultural and domestic wells still sit beneath properties in El Cerro, Sierra del Oro, and the older parts of town. When one of those parcels is sold, redeveloped, or connects to city water, the unused well must be properly decommissioned under California law and Riverside County ordinance.
Southern California Well Service is a licensed C-57 well contractor with offices in Ramona and Anza and founded in 2020, with 60+ years of family heritage across Riverside County. We decommission wells throughout the Corona area and manage the entire Riverside County permit and reporting process. This guide explains when destruction is required, how the county process works, and how the well is sealed.
When Decommissioning Is Required
- Property sales and refinancing. Lenders and title companies in Corona commonly require documented destruction of abandoned wells.
- Redevelopment. Building on a former grove parcel means any old wellhead must be sealed first.
- Connecting to city water. A redundant private well must be retired properly.
- Replacement wells. A new well requires the old one to be decommissioned.
- Inactive wells and contamination risk. Unused wells are legally abandoned, and old casings near septic or former agricultural operations can carry pollutants into the aquifer.
The Riverside County Permit Process
Corona well destruction is permitted and inspected by the Riverside County Department of Environmental Health (DEH). No one may destroy a water well without first filing a written application and receiving a valid permit, and the work must be done by a licensed C-57 contractor. We prepare and submit the application, including the destruction method the county requires, and pay the fee. Riverside County reviews complete applications promptly, typically within about six working days. After approval, we perform the work, coordinate the inspection, and file the Department of Water Resources destruction report so the permit can be closed.
How the Well Is Destroyed to Bulletin 74 Standards
We follow DWR Bulletin 74-81 and 74-90, which Riverside County adopts:
- Verify the well. Sound the borehole for total depth, casing diameter and material, and static water level.
- Clear obstructions. Remove the pump, drop pipe, wiring, and any debris.
- Disinfect. Chlorinate the well before sealing.
- Seal from the bottom up. Place neat cement or bentonite grout through a tremie pipe so the casing fills with no voids; pressure-grout perforated zones.
- Restore the surface. Cut the casing below grade, set a concrete plug, and restore the ground.
Inspection, Documentation, and Timeline
Riverside County may witness the sealing or inspect the finished work. A typical residential Corona well is sealed in one day. With the county's roughly six-working-day review plus the final report, most projects wrap up within one to two weeks. You receive copies of the destruction documentation.
Costs in Corona
Most Corona decommissioning projects run $1,500 to $5,000+, depending on depth, casing diameter, and access. County permit fees add $200 to $800. Our $125 diagnostic fee is credited toward the work when you proceed.
Why a Licensed C-57 Contractor
California law and Riverside County ordinance both require well destruction to be performed by a registered, licensed C-57 contractor. On Corona's former grove land, proper full-depth sealing keeps legacy agricultural contaminants out of the groundwater and keeps your sale on track. We provide the equipment, the county registration, and the documentation.
Serving Corona and Western Riverside County
We serve Corona including Sierra del Oro, El Cerro, Coronita, and the Temescal Valley, plus nearby Norco, Eastvale, Riverside, and Lake Elsinore. Call for a clear assessment of your well.
Get a Free Estimate
Call (760) 440-8520 or text (760) 219-5877 to schedule your Corona well decommissioning. founded in 2020, serving Riverside County, we handle the permit, the sealing, and the paperwork.
What Happens If You Don't Decommission an Old Well
An abandoned well is not a passive hole in the ground. It is an open vertical pathway that connects the surface directly to the aquifer, bypassing the natural soil layers that normally filter contaminants. In Corona, leaving a well unsealed creates several distinct problems. On Corona's former citrus land, legacy agricultural wells can carry old chemical residues straight into the Temescal Valley groundwater. Surface runoff, fertilizer, fuel, and bacteria can travel straight down a corroded or open casing and degrade the groundwater that neighboring wells still draw from. Old wells also collapse over time, and a hidden, partially filled shaft is a genuine physical hazard to children, pets, livestock, and equipment. From a financial standpoint, an undocumented well is a recorded liability that can surface during a title search and stop a sale cold. Decommissioning resolves all of these at once: it removes the contamination pathway, eliminates the safety hazard, and produces a recorded document proving the well was properly retired.
A Closer Look at the Sealing Materials
The heart of a proper decommissioning is the sealant, and Riverside County follows the California Department of Water Resources standards for what may be used. The acceptable materials are neat cement grout (cement and water, sometimes with a small bentonite addition), sand-cement grout, and bentonite grout. Each has a place: neat cement is the workhorse for sealing the casing itself, while bentonite is often used where a flexible, low-permeability seal is preferred. The material must be placed by tremie pipe from the bottom of the well upward so that the grout displaces water and fills every foot of the bore without trapping voids or bridging partway down. Simply dumping dry sacks or concrete from the top is not compliant and is the most common reason a do-it-yourself "abandonment" fails inspection. Where a well is gravel-packed or has perforated sections, the grout is placed under pressure so it penetrates the annular space and the surrounding formation, not just the inside of the casing.
The Riverside County Department of Environmental Health Permit, Step by Step
One advantage of working in Riverside County is the predictable permit timeline. The Riverside County Department of Environmental Health (DEH) is required to approve or deny a complete and accurate well permit application within about six working days, or the application is deemed approved. We prepare applications carefully the first time so they are not kicked back for missing information, which is the most common cause of delay. The same permit framework that governs new wells also governs destruction: no one may dig, drill, reconstruct, or destroy a water well in Corona without first filing a written application and holding a valid permit.
Once the permit is in hand, the field sequence is straightforward but exacting. We mobilize our rig to the wellhead, sound the well one more time to confirm conditions match the permit, pull the pump and any down-hole equipment, disinfect, and then grout from the bottom up. A county inspector may be present to witness the seal or may inspect the completed surface. When the work is done, we complete the Department of Water Resources Well Completion Report documenting the destruction, including the materials used and the volumes placed, and we file it with the county and the state. You receive copies for your permanent records, your insurance, and any future buyer's due diligence.
How to Prepare Your Corona Property
You can make the project faster and cheaper with a little preparation. Clear vegetation and stored items away from the wellhead so our equipment has a path. Locate any paperwork you have on the well, such as the original driller's report, the well's depth, or its construction details, which helps us size the job accurately. If the well is inside a pump house or under a structure, let us know during the diagnostic visit so we can plan access. If you are selling, start early; the permit and inspection cycle takes time, and rushing it during escrow adds stress. We are happy to coordinate directly with your real estate agent, escrow officer, or environmental consultant.
Serving Corona and Beyond
Southern California Well Service operates from two offices, at 1077 Main Street in Ramona and 57174 CA-371 (US Hwy 79) in Anza, which lets us reach Corona and the wider region efficiently. Since 2020, we have working Riverside County groundwater, and our crews carry the licensing, the grouting equipment, and the county relationships to handle decommissioning of any size, from a shallow domestic well to a deep, large-diameter agricultural bore. Beyond Corona, we regularly serve Norco, Eastvale, Riverside, the Temescal Valley, and Lake Elsinore. Whatever the situation that brought you here, whether a sale, a replacement, an inherited property, or a county notice, we can walk you through the options and give you a clear, written estimate.