Alaska Water Well Depth & Drilling Cost Guide
Authoritative hydrogeological intelligence for Alaska. Regulated by the Alaska Department of Environmental Conservation (ADEC). The statewide median drilling depth is 195 feet (ranging 50–600 ft) with an average drilling cost of $68 per foot ($45 to $110/ft).
Quick Hydrogeological Fact Sheet: Alaska
To reach potable water in Alaska, residential wells require drilling an average of 195 feet deep. Total turnkey installation costs average $16,500 USD for a completed 6-inch casing well, 1.5 HP submersible pump, pressure tank, and state permits. The standing static water table sits at approximately 35 feet below surface level, producing a reliable average flow rate of 12 GPM across the primary Cook Inlet Alluvial Aquifer.
Alaska County-Level Well Logs & Average Depths
Official USGS hydrogeological monitoring stations, static levels, and driller completion records.
| County Name | Median Depth (ft) | Avg Cost / Foot | Typical Yield | Primary Aquifer | Local Action |
|---|---|---|---|---|---|
| Matanuska-Susitna Borough | 165 ft | $62 /ft | 15 GPM | Glacial Alluvium |
|
| Fairbanks North Star Borough | 220 ft | $75 /ft | 10 GPM | Tanana Alluvium / Bedrock |
💰 Estimated Turnkey Cost Itemization in Alaska
Component-by-component breakdown for a standard residential water well (195 ft average).
| System Component | Specification in Alaska | Unit Cost | Estimated Subtotal |
|---|---|---|---|
| Borehole Drilling & Sanitary Casing | 195 ft depth with standard 6" PVC/Steel Casing & Drive Shoe | $68 /ft | $13,260 USD |
| Submersible Pump & Drop Pipe | 1.0 HP – 1.5 HP Stainless Submersible Pump with 12-gauge electrical drop cable | Turnkey Pump Unit | $2,250 USD |
| Pressure Tank & Control Switch | 40-gallon Captive Air Pressure Tank, 40/60 PSI Pressure Switch & Gauge | Standard Assembly | $1,200 USD |
| State Permits, Sanitary Grouting & Lab Water Testing | Mandatory Alaska Department of Environmental Conservation (ADEC) permit, bentonite surface seal, and EPA drinking panel | State Fee + Lab | $650 USD |
| TOTAL ESTIMATED TURNKEY INVESTMENT | Includes excavation, drilling, plumbing hookup, and water inspection | $16,500 USD | |
Alaska Aquifers & Subsurface Geology
Glacial till, fractured bedrock, permafrost layers in interior
Water Quality & Recommended Filtration
⚖️ Alaska Well Drilling Regulations & Legal Setbacks
Calculate Drilling Cost in Alaska
Pre-loaded with Alaska median depth (195 ft) and average cost ($68/ft).
Frequently Asked Questions: Drilling Wells in Alaska
1. How deep do you usually have to drill for water in Alaska?
Across Alaska, the median residential water well is drilled to 195 feet. However, shallow alluvial wells can hit water as high as 50 feet, while deep bedrock or limestone aquifer wells may require drilling down to 600 feet to reach sufficient pressure and yield.
2. How much does a complete water well cost in Alaska?
On average, homeowners in Alaska invest $16,500 USD for a complete turnkey system. Drilling alone costs $68 per foot (ranging $45–$110/ft), while submersible pumps, pressure tanks, state permit fees ($200), and electrical hookups comprise the remaining balance.
3. What is the required setback from septic tanks in Alaska?
State health mandates overseen by the Alaska Department of Environmental Conservation (ADEC) require a minimum separation distance of 100 feet from any septic tank, leach field, or potential contamination source, plus at least 25 feet from adjacent property boundaries.
4. What is the groundwater quality like in Alaska?
Wells in Alaska typically yield water with a hardness reading around 140 PPM and an average pH of 7.4. Key minerals present in natural groundwater include Iron, Arsenic in interior, Turbidity. The recommended standard filtration configuration is: Multi-Stage Arsenic & Iron Filter.
🗺️ Neighboring & Regional Groundwater Guides
Request 3 Free Water Well Drilling Estimates in Alaska
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