Basics
When to Use a Private Well
Private wells are used wherever municipal water is unavailable or impractical – typically rural locations or lands beyond city/town service areas. In Mississippi, about 13% of residents rely on private wells (mostly in rural areas). If your property has no public water line or extending the system is too costly, drilling a well is necessary.
Well Drilling Costs in Mississippi
Comparing against national numbers? See our national guide to the cost to drill a water well for per-foot rates, itemized components, and what quotes leave out.
A complete private well system in Mississippi typically costs $4,000–$15,300, depending on depth, geology, and equipment choices.
Timeline: From Decision to Drinking Water
In most cases you can expect potable water within roughly 3–6 weeks of your decision, assuming no major delays.
Permits & Process
Do You Need a Permit?
No state permit required.
Mississippi exempts domestic wells from groundwater withdrawal permits (11 Miss. Code R. 7-1.4).
- Must use licensed contractor
- Follow setback rules (≥50 ft from septic tank, ≥100 ft from drainfield)
- Check county for local requirements
Permit required from MDEQ.
Irrigation, industrial, or wells >20,000 gal/day in Water Use Caution Areas need permits.
- $10 per-well application fee
- Apply before drilling
- Contact MDEQ at 601-961-5215
Step-by-Step Process
- Contact a licensed well contractor – Mississippi law requires drilling by a licensed contractor. Use the MDEQ list or call 601-961-5215.
- Site evaluation – Driller assesses property. Ensure ≥50 ft from septic tanks, ≥100 ft from drainfields. Some counties require plot plans.
- Contracts and scheduling – Agree on scope, cost, timeline. Contractor handles permits and rig registration with MDEQ.
- Drilling the well – Drill to desired depth (100–300 ft typical), install steel casing, grout annulus. Casing must end ≥12″ above ground (or 100-year flood elevation).
- Pump & tank installation – Install submersible pump, pressure tank, wiring. Well is disinfected (shocked with chlorine).
- Water sampling/testing – Collect bacteria and chemical samples. Send to accredited lab (see Water Quality section).
- System handover – Driller provides logging records. State Well Report filed with MDEQ within 30 days.
Who Does What?
Driller Handles:
- Licensing and rig registration
- Drilling, casing, grouting per state standards
- State Well Report (30-day deadline)
- Initial disinfection
Homeowner Handles:
- Payment for well construction and equipment
- Water testing coordination and fees
- Treatment system (if needed)
- Record keeping
Inspections and Approvals
Mississippi does not require a special on-site inspection for private wells beyond the driller's report. However, best practice is to have the installed system checked by a competent professional. A qualified well contractor can perform an equipment inspection – checking that the pump, motor, pressure tank, and plumbing are sanitary and code-compliant.
Water Quality
Well water testing in Mississippi
The Mississippi State Department of Health (MSDH) handles private well water quality in Mississippi. MSDH recommends testing at least once a year; call the MSDH Call Center to have an environmentalist sample your well for bacteria (chemical testing goes through certified private labs).
Not sure what to test for? See our national guide to well water testing or order a certified lab test kit shipped to your door.
Recommended Testing
At minimum, test for total coliform (bacterial) and nitrate. Mississippi health officials also commonly recommend:
- Iron, manganese, hardness (total dissolved solids), hydrogen sulfide
- Lead (if plumbing contains lead) or volatile organic compounds (if nearby industrial use)
Where to Test Your Water
- MSDH Private Well Program: Mississippi State Dept. of Health accepts private well samples (fee ~$10) for basic testing. Apply online at healthyms.com/wwapply or call 1-855-220-0192.
- Certified laboratories: MSDH publishes a list of in-state accredited labs including Bonner Analytical (Hattiesburg, 601-264-2854), Micro-Methods (Ocean Springs, 228-875-6420), and City of Meridian lab (601-484-6836).
- Extension programs: The Mississippi Well Owner Network (MSU Extension) hosts occasional free water testing clinics (662-325-1788).
Common Mississippi Water Quality Issues
Hard Water & Iron/Manganese
Many Mississippi aquifers contain minerals causing hard water (high calcium/magnesium) and high iron/manganese (rusty color or metallic taste).
Nitrate
Bacterial coliform and nitrate (from farm fertilizers or septic systems) are frequent concerns. A USGS study detected agricultural nitrate in northwest Mississippi shallow groundwater.
Other Contaminants
Sulfates, hydrogen sulfide (rotten-egg odor), and arsenic can occur in alluvial aquifers. Emerging contaminants (PFAS) have been detected in some wells.
- Mississippi Delta (western MS): Prone to nitrate from fertilizer, higher arsenic/iron in alluvial aquifer
- Central/northern MS: Limestone formations cause hard water, occasional radon
- Coastal plain (southern MS): Iron-rich water, slight saltwater intrusion (higher chloride) near gulf
Treatment Options
- Bacteria: Shock-disinfect well (chlorination). If coliform recurs, install UV or chlorinator systems.
- Nitrates: Reverse osmosis (RO) or distillation. If well exceeds 10 mg/L NO₃-N, use alternate water or certified treatment.
- Iron/Manganese: Aeration or oxidizing filters (e.g., manganese greensand) + sediment filtration.
- Hardness: Conventional water softeners (cation-exchange).
- Hydrogen sulfide: Aeration or catalytic carbon filters.
- Arsenic: Specialized media or RO. If arsenic > 10 ppb, install certified arsenic treatment unit.
Maintenance & Troubleshooting
Annual Maintenance Checklist
Mississippi authorities recommend an annual check-up by a qualified well contractor.
- Water testing: At least once per year (for coliform and nitrate at minimum)
- Physical inspection:Check well casing and cap for cracks. Keep 50-foot "clean zone" around wellhead.
- Pump and tank check: Test water flow/pressure. Contractor can perform flow test, measure draw-down, check pump amperage.
- Equipment service: Replace filters at manufacturer intervals. Pressure tanks typically last 10–15 years.
- Disinfection: Shock-treat well if bacterial contamination is found or if pump is changed.
Warning Signs of Problems
- Water quality changes: New tastes, odors, cloudiness, rust-colored water or sediment
- Low flow or pressure: If normally strong flow slows significantly
- Pump cycling: Rapid on/off cycling (often due to failing pressure tank or drop in water level)
- Electrical issues: Frequent breaker trips when pump runs
- Health signals: Gastrointestinal illness from tap water – test for bacteria immediately
Call a licensed pro for: Drilling new wells, replacing/repairing pumps, fixing casing issues, treating stubborn contamination, complex chlorination, or rewiring. State law requires licensed contractors for drilling and pump installation.
Find a Licensed Driller
Mississippi law requires a licensed water well contractor for all well drilling work.
Search Licensed Drillers in Mississippi
Find Drillers Near You →How to Verify a Driller
- Ask for their MDEQ license number
- Call MDEQ OLWR at 601-961-5215 to verify license is active
- Get 2-3 written quotes
- Ask for references from recent jobs
- Confirm they will file the State Well Report within 30 days
Resources & Contacts
Additional State Contacts
- MSDH – Bureau of Public Water Supply: 601-576-7518 (water quality rules)
- MSDH – Environmental Lab Certification: 601-576-7582 (accredited water testing labs)
Certified Testing Laboratories
- Bonner Analytical Testing, Inc. (Hattiesburg) – 601-264-2854
- Micro-Methods Laboratory (Ocean Springs) – 228-875-6420
- City of Meridian Fresh Water Treatment Plant Lab – 601-484-6836
- NASA Environmental Services, Stennis Space Center – 228-688-2053
Key Regulatory References
- 11 Miss. Code R. 7-2.12 – Water well construction standards (licensed drillers required)
- 11 Miss. Code R. 11-7-2.9 – State Well Reports (30-day filing deadline)
- 11 Miss. Code R. 7-1.4 – Exempts single-household wells from water withdrawal permits
Frequently Asked Questions
Are You a Licensed Driller?
Check out our compliance reference for Mississippi drilling regulations, forms, and requirements.
Mississippi Driller Compliance Guide →Sources & References
All information above is drawn from official Mississippi sources and extension guidance:
- Mississippi Today – Private Water Wells Map
- MSU Extension – Mississippi Private Well Populations
- 2024 Well Drilling Costs (Industry Averages)
- 11 Miss. Code R. 7-2.12 – Design Criteria & Construction Standards
- 11 Miss. Code R. 11-7-2.9 – State Well Reports
- 11 Miss. Code R. §7-1-4 – Groundwater Withdrawals (Exemptions)
- MSDH – Groundwater Protection
- USGS – Fate and Transport of Nitrate in Shallow Groundwater in Northwestern Mississippi
- MSDH – Water Supply Certification: In-State Participating Labs
- MSU Extension – Mississippi Well Owner Network