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Delaware Water Well Driller — Requirements & Free Practice

US-DE · License preparation

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Licenses, application pathways and examination requirements

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General Well Driller

Individual well driller license for general well drilling.

Licensing authority: Delaware Department of Natural Resources and Environmental Control, Division of Water · Application information

Reapplication after completion of revocation
General Well Driller Examination
Application
Submit a signed, notarized application, required fees, two references from currently licensed well drillers or well drivers, and details of environmental or regulatory proceedings during the preceding five years.
Assessment format
7302 §§5.2.2.3 and 5.6.1 permit written or oral assessment; current DNREC implementation offers the separate scored multiple-choice and true/false examination for the selected license type.
Board review
The Board reviews the application and may interview the applicant; applicants found ineligible may reapply after 90 days. Submit at least 10 business days before the monthly meeting.
Disciplinary status
The term of revocation has ended; the applicant may submit a new application under 7302 §11.6.5 and must satisfy the applicable initial requirements.
Eligibility period
Examination eligibility expires 12 months after Board review. Failed applicants wait at least 90 days to retake and must reapply if eligibility expires.
Employment
Work only in the employ of a licensed water well contractor. The contractor must verify employment to activate the individual license.
Experience
At least two years operating well construction equipment, constructing wells, and installing, maintaining and repairing well pumps (7302 §5.2.2.2).
Fee notice
Current DNREC fee schedule lists a $100 well driller application/renewal fee, a $100 examination fee and a $50 late fee; the undated paper application and illustrated online instructions retain older $30 amounts.
License scope
General well drilling subject to any conditions on the license.
Minimum age
At least 18 years of age (7302 §5.2.2.1).
Prior licensure
The official paper application asks whether the applicant is licensed elsewhere and requests that license information; an external license is applicant evidence, not a substituted examination.
Scope conditions
The Board may recommend restrictions based on experience, including geotechnical wells, dewatering wells or particular equipment; only work authorized by the issued license is permitted.
Reinstatement after suspension with an unexpired license
No examination is required for this applicant pathway.
Disciplinary status
Suspension term has expired; the unexpired license is deemed in good standing on the first calendar day afterward.
Employment
Work remains limited to the license scope while employed by the licensed contractor.
License status
License remains unexpired. If it expired during suspension, the applicable §6 renewal route governs instead.

Official no-examination sources

Effective from 2026-09-22.

Annual renewal
No examination is required for this applicant pathway.
Application
Submit renewal application and applicable fee, and notify DNREC of changed contact or employment information.
Continuing education
At least four approved hours, subject to the first-year prorating in 7302 Table 1.
Employment
The employing contractor must renew first and verify employment before the individual license becomes active.
License status
Existing license; renew annually before expiration on December 31. Submit by November 30 to avoid lapse.
Suspension
If a suspension has expired but the license expired during it, comply with the applicable renewal requirements in 7302 §6 before reinstatement.

Official no-examination sources

Effective from 2026-09-22.

Initial licensure by examination
General Well Driller Examination
Application
Submit a signed, notarized application, required fees, two references from currently licensed well drillers or well drivers, and details of environmental or regulatory proceedings during the preceding five years.
Assessment format
7302 §§5.2.2.3 and 5.6.1 permit written or oral assessment; current DNREC implementation offers the separate scored multiple-choice and true/false examination for the selected license type.
Board review
The Board reviews the application and may interview the applicant; applicants found ineligible may reapply after 90 days. Submit at least 10 business days before the monthly meeting.
Eligibility period
Examination eligibility expires 12 months after Board review. Failed applicants wait at least 90 days to retake and must reapply if eligibility expires.
Employment
Work only in the employ of a licensed water well contractor. The contractor must verify employment to activate the individual license.
Experience
At least two years operating well construction equipment, constructing wells, and installing, maintaining and repairing well pumps (7302 §5.2.2.2).
Fee notice
Current DNREC fee schedule lists a $100 well driller application/renewal fee, a $100 examination fee and a $50 late fee; the undated paper application and illustrated online instructions retain older $30 amounts.
License scope
General well drilling subject to any conditions on the license.
Minimum age
At least 18 years of age (7302 §5.2.2.1).
Prior licensure
The official paper application asks whether the applicant is licensed elsewhere and requests that license information; an external license is applicant evidence, not a substituted examination.
Scope conditions
The Board may recommend restrictions based on experience, including geotechnical wells, dewatering wells or particular equipment; only work authorized by the issued license is permitted.
Renewal within one year after expiration
No examination is required for this applicant pathway.
Application
Submit renewal application and applicable fee, and notify DNREC of changed contact or employment information.
Continuing education
At least four approved hours, subject to the first-year prorating in 7302 Table 1.
Employment
The employing contractor must renew first and verify employment before the individual license becomes active.
License status
Expired no more than one year; submit the renewal application, required continuing education and applicable renewal and late fees.
Suspension
If a suspension has expired but the license expired during it, comply with the applicable renewal requirements in 7302 §6 before reinstatement.

Official no-examination sources

Effective from 2026-09-22.

Restoration after expiration exceeding one year
General Well Driller Examination
Application
Submit a signed, notarized application, required fees, two references from currently licensed well drillers or well drivers, and details of environmental or regulatory proceedings during the preceding five years.
Assessment format
7302 §§5.2.2.3 and 5.6.1 permit written or oral assessment; current DNREC implementation offers the separate scored multiple-choice and true/false examination for the selected license type.
Board review
The Board reviews the application and may interview the applicant; applicants found ineligible may reapply after 90 days. Submit at least 10 business days before the monthly meeting.
Eligibility period
Examination eligibility expires 12 months after Board review. Failed applicants wait at least 90 days to retake and must reapply if eligibility expires.
Employment
Work only in the employ of a licensed water well contractor. The contractor must verify employment to activate the individual license.
Experience
At least two years operating well construction equipment, constructing wells, and installing, maintaining and repairing well pumps (7302 §5.2.2.2).
Fee notice
Current DNREC fee schedule lists a $100 well driller application/renewal fee, a $100 examination fee and a $50 late fee; the undated paper application and illustrated online instructions retain older $30 amounts.
License scope
General well drilling subject to any conditions on the license.
License status
License expired more than one year; all requirements of 7302 §5 apply, including the examination.
Minimum age
At least 18 years of age (7302 §5.2.2.1).
Prior licensure
The official paper application asks whether the applicant is licensed elsewhere and requests that license information; an external license is applicant evidence, not a substituted examination.
Scope conditions
The Board may recommend restrictions based on experience, including geotechnical wells, dewatering wells or particular equipment; only work authorized by the issued license is permitted.

General Well Driller Examination

Provider
Delaware Water Well Licensing Board / DNREC Division of Water
Format
Multiple-choice and true/false questions
Passing score
75% or higher
Practice scope

The authority has not published an examination outline; the practice questions follow the scope of the existing question bank.

  • Licensure Scope and Licensee Duties
    • License scope, qualifications, employment, and supervision
    • Licensee identification, responsibilities, renewal, and conduct
  • Well Permitting and Authorization
    • Permit prerequisites, preparation, and application requirements
    • Permit duration, emergency authorization, relocation, transfer, and use
  • Well Siting and Contamination Protection
    • Separation distances and location restrictions
    • Contamination review, construction safeguards, and site access
  • Casing, Screens, and Gravel Packs
    • Casing materials, dimensions, joints, and placement
    • Screen selection, aquifer protection, and gravel packs
  • Annular Seals and Grouting
    • Annular dimensions, placement, timing, and inspection
    • Grout mixtures, water conditioning, cure, and performance
  • Construction Water, Fluids, Development, and Wellheads
    • Construction water, drilling fluids, and lost circulation
    • Well development, pitless equipment, caps, and head completion
  • Pumping Controls and Special Water-Supply Wells
    • Access ports, meters, backflow control, pumps, and vents
    • Flood-zone, public, industrial, agricultural, and construction wells
  • Well Disinfection and Water-Quality Release
    • When disinfection and bacteriological testing are required
    • Disinfectant dosage, contact, residual, flushing, and sampling
  • Completion Records and Identification Tags
    • Completion reports, formation logs, signatures, and attachments
    • Tag timing, placement, fastening, and return
  • Repair, Sealing, Alternative Compliance, and Enforcement
    • Repair limits, sealing triggers, materials, procedures, and reports
    • Alternative methods, variances, discipline, suspension, and appeals
Examination sources