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Driller ReferenceNew Hampshire (NH)RSA 482-B, We 600

New Hampshire Well Driller Compliance Reference

Licensing, regulations, forms, and reporting requirements for licensed water well contractors in New Hampshire.

Updated: October 2026Code: RSA 482-B, We 600

Forms & Resources

Well Completion Report (NHDES-W-03-173)

Required for every completed well. Due within 90 days (RSA 482-B:10, We 800). No fee currently; a $100 fee per report is scheduled for January 1, 2027 (We 303.02(j)). Confirm implementation with NHDES.

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Well Abandonment Report

Required when sealing/abandoning a well. Submit within 90 days (recommended).

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All NHDES Forms

  • NHDES-W-03-173: Well Completion Report (required for all wells)
  • Well Abandonment Report: Required for sealed/abandoned wells
  • WWB License Application: Downloadable new-license application
  • NHDES-W-03-082: License renewal can be completed online
  • High-Capacity Well Forms: For wells withdrawing more than 57,600 gallons in any 24-hour period
Form Submission: Use the NHDES Online Forms Portal to download mail-in construction forms. License renewal (NHDES-W-03-082) is available online. Search "Water Well Construction and Licensing".

Licensing Requirements

New Hampshire requires licensed contractors for all well work per RSA 482-B. Qualifications include 3 years' experience and passing a board exam.

License Fees (Annual)

License TypeAnnual FeeEquipment/Scope
Water Well Contractor (dug wells)$100/yrBackhoe/auger equipment
Water Well Contractor (washed/cable)$150/yrCable-drilled or washed wells
Water Well Contractor (rotary)$225/yrRotary-drilled wells (most common)
Technical Driller (monitoring wells)$225/yrGroundwater monitoring wells
Pump Installer$100/yrDomestic (≤3 HP) or commercial pumps

Additional Fees

Fee TypeAmountNotes
New License Application Fee$25Nonrefundable, one-time
Exam Fee (per category)$10Separate from license fee
Late Renewal Fee$20After July 31 deadline
Experience Requirement
Applicants must have 3 years of relevant experience, including 1 year drilling in crystalline Appalachian bedrock. Out-of-state license holders may waive the exam if reciprocal arrangements exist.

Continuing Education

  • Pump Installers: 2 hours annually from board-approved providers
  • Well Drillers: No mandatory CE (Board may require remedial CE if disciplined)
  • Approved Topics: Water wells, pumps, treatment, safety, management, hydrogeology
  • Providers: NHDES, state agencies, trade associations, accredited colleges, vendors
  • Record Retention: Keep certificates for 1 year after course date
Exam Information
After NH Water Well Board approves your application, schedule the exam. Study NH Admin Code We 600 and RSA 482-B for exam content. Exams are prepared by the Water Well Board.

Reporting & Documentation

New Hampshire well documentation deadlines
DocumentDeadlineSubmit To
Well Completion Report90 days after completionNHDES (download mail-in form)
Well Abandonment Report90 days recommendedNHDES (download mail-in form)
License RenewalBefore June 30 annuallyNH Water Well Board
CE Certificates (pump installers)Keep 1 year after courseRetain for audit

Well Completion Report Requirements

The completion report (NHDES-W-03-173) must include:

  • Owner name and property GPS coordinates (NAD 83/WGS 84 datum)
  • Completion date, well use, and total depth
  • Casing material, sizes, depths, and seal method
  • Yield test results (GPM) and static water level
  • Geologic deposits encountered (lithology)
  • Pump details (type, HP, depth) if installed
  • Bacteriological sample collected (yes/no flag)
GPS Coordinates Required
All well reports must include precise GPS coordinates using NAD 83 or WGS 84 datum. This is critical for NHDES well database and future reference.

Well Abandonment Procedures

Abandoned wells must be sealed per We 604.05:

  • Dug wells: Sand/gravel fill with top 2 ft clay
  • Drilled bedrock wells: Alternating crushed stone and 4 ft bentonite layers from bottom
  • Drilled overburden wells: Sand/gravel to 15 ft below grade, 4 ft bentonite, then grout

Submit the Well Abandonment Report within 90 days (recommended).

Construction Standards (We 600)

Septic setbacks above 750 gpd increase under We 600 Appendix C. Reduced setbacks require the applicable We 602.14-.16 site conditions, construction safeguards and approvals; .09 standard distances are subject to those bedrock-well exceptions.

Casing & Grouting (We 602)

  • Annular seal: Where grouted casing is required, follow We 602.05; .31 excavated and .28 driven/drive-and-wash wells are excluded. For gravel wells, grout from 5 ft below the pitless adapter to a design depth sufficient to prevent surface water channeling to groundwater
  • Bedrock wells: Grout from bottom of borehole to surface
  • Overburden wells: Contractor-specified depth (adequate protection)
  • Casing height: At least 8 inches above grade for bedrock and unconsolidated wells; 18 inches for public-water-system and dug wells
  • Flood zones: Higher casing as needed to prevent surface water entry

Setback Requirements (We 602.07–.10)

Contamination SourceMinimum Distance
Septic disposal area or tank (≤750 gal/day)75 ft; tank reduction to 50 ft requires SDR 26 or equivalent soil line and sealed/grouted tank
State highway right-of-way, surface water, sewer50 ft
Livestock pen, salvage yard, solid waste site, fertilizer/manure/salt pile, public road surface75 ft (livestock pen: 100 ft for dug wells)
Gasoline underground storage tanks (non-public well)250 ft minimum
Other regulated-substance underground tanks (non-public well)75 ft minimum
Critical Setbacks
Non-public wells must be at least 250 ft from gasoline underground storage tank systems and 75 ft from underground tanks with other regulated substances. Public supply wells require 500 ft and 400 ft respectively (We 602.11).

Disinfection (We 602.03)

All new wells must be chlorinated before use. Shock-chlorinate and flush until 50 ppm residual chlorine is achieved. Water testing is recommended for private domestic wells, but is not a state requirement. State whether a sample was collected on the completion report (We 801.01(a)(16)).

Pump Installation (We 602)

  • Casings rising ≥1 ft above finished floor if in building
  • Tight sanitary seal around entry ports required
  • Licensed pump installer required for all pump work

Permits

State Permits

NH does not issue a pre-drilling permit for private domestic wells. The Well Completion Report (within 90 days) fulfills the state notification requirement.

High-Capacity Wells

Wells installed after August 1998 withdrawing more than 57,600 gallons over any 24-hour period require a Large Groundwater Withdrawal Permit from NHDES (RSA 485-C:21-25, Env-Wq 403). The permit process requires:

  • Hydrogeologic assessment and yield testing
  • Water budget analysis
  • Public notice and review
  • Annual registration with NHDES

Local Permits

No county-level well permits exist in NH. However, check with the local town for building permits, road-opening permits, or occupancy requirements.

Special Well Types

  • Closed-loop geothermal (We 602.37): Standard drilling license required. No special permit beyond contractor license.
  • Open-loop geothermal (We 602.38): May require drinking water or injection well permit. Contact NHDES Groundwater Bureau.
  • Monitoring wells: Licensed technical driller required (RSA 482-B). Discharging/reinjecting purge water may require UIC permit.

Drilling Conditions by Region

Geology Overview
New Hampshire's geology is dominated by fractured crystalline bedrock(gneiss, schist, granite) covered by glacial till. Sand and gravel aquifers are scarce except in limited river valleys. Most wells tap bedrock fractures at 100–300 ft depth.
Northern NH (White Mountains, Northwest)
  • Granite and schist bedrock (hard drilling)
  • Low yields (few GPM typical)
  • Diamond core bits or heavy-duty rotary required
  • Locating fracture zones critical for adequate yield
  • Radon common in granite formations
Central NH (Lakes Region, Concord Area)
  • Metamorphic gneiss/limestone bedrock
  • Moderate yields in fracture zones
  • Some glacial outwash in valleys
  • Typical depths 100–250 ft
  • Hardness common (calcium/magnesium)
Southeast NH (Seacoast: Rockingham, Strafford)
  • High arsenic risk zone (~19% wells >10 ppb)
  • Bedrock fractures in granite/gneiss
  • Limited gravel aquifers in coastal terraces
  • Depths 100–300 ft typical
  • Recommend arsenic testing for all wells
Southwest NH (Merrimack Valley, Hillsborough)
  • Glacial outwash in Merrimack River valley
  • Bedrock wells in upland areas
  • Nitrate risk near agricultural areas
  • Arsenic elevated in some bedrock zones
  • Depths 100–200 ft common

Drilling Challenges

Hard Rock

Nearly all drillers encounter very hard, abrasive bedrock. Diamond core bits or heavy-duty rotary drills are essential. Expect slow drilling in granite/gneiss.

Low Yields

Fractured-bedrock wells often yield only a few GPM. Locating fracture zones (via geologic clues or air-hammer drilling) is critical. Some wells "go dry" seasonally.

Seasonal Recharge

Water tables peak in spring (thaw/heavy rains). Winter frost rarely penetrates below 3 ft. Track seasonal recharge patterns when siting wells.

Arsenic Advisory
Many private bedrock wells in southeastern NH (Rockingham, Strafford, Hillsborough) have arsenic above 10 μg/L. Ensure all casing and grout penetrate arsenic-bearing strata and advise homeowners on treatment. NHDES provides arsenic advisory maps.

Resources & Contacts

NH Water Well Board

Licensing, exam scheduling, compliance questions

NHDES Drinking Water & Groundwater Bureau

Well reports, water quality, technical assistance

NH Water Well Association

Industry association, training, member referrals

USGS New Hampshire Water Science Center

Aquifer maps, geology data, groundwater studies

Regulatory References

Technical Resources

Frequently Asked Questions

How do I renew my New Hampshire driller license?
Renew annually through the NH Water Well Board before June 30. Fees are $100–$225 depending on equipment type. After July 31, a $20 late fee applies. Pump installers must complete 2 hours of CE annually before renewal.
What are the CE requirements for New Hampshire drillers?
Pump installers must complete 2 hours of continuing education annually from board-approved providers. No mandatory CE is specified for well drillers, though the Board may require remedial CE if disciplined. Approved topics include water wells, pumps, treatment, safety, and hydrogeology.
How soon must I file the well completion report?
Within 90 days after completion (RSA 482-B:10, We 800). Download mail-in form NHDES-W-03-173 from the NH Online Forms System and mail it to NHDES. A $100 report fee is scheduled for January 1, 2027 under We 303.02(j); confirm implementation with NHDES. Include owner info, GPS coordinates, depth, casing/seal details, yield test, static water level, geology, and bacteriological sample flag.
What are the setback requirements in New Hampshire?
75 ft from septic disposal areas or tanks (≤750 gal/day); tank reduction to 50 ft requires an SDR 26 or equivalent soil line and a sealed/grouted tank. For non-public wells, gasoline underground storage tank systems require 250 ft; underground tanks with other regulated substances require 75 ft (We 602.11).

Looking for Homeowner Information?

Check out our New Hampshire well guide for homeowners covering costs, permits, and water quality.

New Hampshire Homeowner Well Guide →