Casing Extensions & Sanitization Caps
Elevate submerged wellheads above flood level and install vermin-proof sanitary locking caps to seal out snakes, insects, and contaminated runoff.
Common Signs & Symptoms of Failure
- ⚠ Wellhead is flush with the ground or buried in a dirt pit that fills with water
- ⚠ Cracked, loose, or missing well cap exposing open borehole to the elements
- ⚠ Dead mice, snakes, lizards, or beetles found inside the well or filter housing
- ⚠ Wellhead is located in a seasonal drainage swale or low-lying pasture
- ⚠ Exposed bare wiring entering the top of the wellhead without conduit
Technical Execution & Equipment Standards
- ✓ Welded steel or glued heavy Schedule 80 PVC casing extensions
- ✓ Elevated to minimum 12 to 24 inches above 100-year flood grade per TDLR rule
- ✓ Heavy-duty cast aluminum sanitary well seals with neoprene compression gaskets
- ✓ Stainless steel fine-mesh downward-facing air vent screens allowing well to breathe
- ✓ Threaded watertight electrical conduit fittings securing power cable entry
Equipment Specifications: Installs heavy cast-aluminum sanitary well seals with stainless steel bolts, NEMA conduit adapters, and bronze vent screens.
Our Step-by-Step Field Process
1. Elevation Survey & Flood Grade Assessment
We determine local 100-year flood plain height and assess pasture drainage patterns around the wellhead to calculate required casing extension height.
2. Precision Steel Welding or PVC Sleeve Joining
We bevel the existing casing and weld a heavy-wall steel casing collar with full-penetration bead, or use high-strength Schedule 80 PVC couplings.
3. Sanitary Locking Seal Installation
We bolt down a heavy cast-aluminum two-piece seal, compressing a thick neoprene gasket against casing walls to create an impenetrable biological seal.
4. Conduit & Screened Vent Hookup
We enclose all electrical wiring in rigid watertight conduit and verify that the downward-turned air vent screen is 100% intact to keep insects out while allowing well venting.
Edwards Aquifer & West Texas Geology
During hot West Texas summers, rattlesnakes, scorpions, and spiders seek cool moisture inside open wellheads. A sanitary locking cap with neoprene compression seals is the single most cost-effective insurance policy against biological water contamination.
Preventative Maintenance Tip for Landowners
Inspect your well cap after heavy brush fires or storms to verify the vent screen hasn't melted or torn. A torn screen is the #1 gateway for rattlesnakes.
Frequently Asked Questions
How high above the ground should my well casing stick up?
Texas state regulations (TDLR) require well casings to extend at least 12 inches above ground level or above the highest known flood water elevation in that specific pasture or lot.
Can an unsealed well cap cause my water to fail bacteria tests?
Absolutely. Windblown dust, bird droppings, insects, and small rodents crawling into open caps are the #1 cause of positive coliform bacteria test results in private rural water wells.