Delaware public-record research guide
A Delaware well permit search can lead to several different state systems depending on whether you need an existing permit, a pending application, a map of nearby wells, a licensed driller, or information about a private drinking-water well. The main permitting authority is the Delaware Department of Natural Resources and Environmental Control, commonly called DNREC, through its Division of Water.
Independent-site notice: CountyPermitSearch.org does not issue Delaware well permits and is not a Delaware government agency. Use the official DNREC resources linked throughout this guide for current records, applications, fees, regulations, and permit decisions.
How to Start a Delaware Well Permit Search
The fastest search method depends on what you already know about the property. If you have a well permit number, start with that. If you do not, an address or tax parcel number may help you locate the well through the DNREC Well Viewer. For larger record searches, ownership research, or historical permit data, the Delaware Open Data Portal is often the better starting point.
Gather the property details
Collect the street address, county, tax parcel number, property-owner name if known, and any permit number shown on a well tag or prior report. Exact identifiers reduce the chance of matching the wrong property.
Choose the correct official system
Use the Well Viewer for map-based property research, the Open Data Portal for statewide permit data, or DNREC’s application-status tool when you are trying to follow a submitted application.
Compare the record to the property
Check the permit number, location information, well classification, record dates, and other available fields. Older records can be incomplete, and some location details are restricted.
Verify anything that affects a project
If a well record will influence a purchase, new construction, replacement well, septic layout, environmental review, or legal decision, confirm the record with DNREC or an appropriately licensed professional before relying on it.
DNREC Well Viewer
Map-based research for existing wells, water-service areas, groundwater-protection information, nearby environmental data, and parcel-based searching.
Open the DNREC Well ViewerDelaware Open Data
Statewide public datasets can help with broader well-permit research and filtering.
Open Delaware Open DataWhich Official Delaware Well Search Tool Should You Use?
Delaware does not rely on one interface for every well-related task. DNREC separates map research, public data, application status, professional licensing, and higher-volume water-use regulation into different resources.
| What you need | Best starting point | Useful search information |
|---|---|---|
| Find a well connected to a property | DNREC Well Viewer | Address, parcel number, or well permit number |
| Search statewide well permit records | Delaware Open Data Portal | Permit number, owner information, filters, and geographic fields when available |
| Check a submitted well permit application | DNREC Well Permit Applications | Application or permit information available through the status tool |
| Verify a driller or well contractor | DNREC water-well licensing resources | Contractor or license information |
| Research larger water withdrawals | DNREC Water Supply and Allocations | Facility, allocation, well, and water-use records where applicable |
DNREC’s Division of Water also maintains a broader digital-resources page linking permit-status systems, well data, septic resources, mapping tools, and other water-related records.
What Delaware Well Permit Records Can Tell You
DNREC maintains well information derived from permit applications, completion reports, abandonment records, and other program records. Publicly available records can help establish whether a well was permitted, how it was classified, and what information was recorded when the well was constructed or later modified.
Depending on the age and type of record, a search may identify a permit number, reference number, well classification, property or location information, permit activity, drilling or completion details, and other fields maintained by the Division of Water.
Older property research: A missing online record does not prove that no well exists. Historical files can be incomplete, and older wells may require additional agency research. For an older home or rural parcel, combine database research with physical site review and direct confirmation when necessary.
Why some well locations may not appear
Delaware restricts disclosure of certain well-location information. Some precise well locations are not displayed publicly, including sensitive public drinking-water well locations.
This matters when interpreting an apparently empty map. A missing public pin is not the same as confirmation that no regulated well exists in the area.
What the Well Viewer adds beyond a permit list
The DNREC Well Viewer combines well-related information with mapped environmental and water-supply layers. Depending on the layer selected, users may be able to review nearby groundwater-protection information, service areas, environmental sites, flood information, remediation locations, and other geographic context.
That makes the viewer useful when a homeowner, buyer, driller, consultant, or property researcher needs location context rather than a permit number alone.
Who Applies for a Delaware Well Permit?
Delaware regulates well construction through DNREC. For ordinary regulated well work, a Delaware-licensed well professional plays a central role in preparing and carrying out the project rather than the work being treated as an unrestricted do-it-yourself activity.
Property information, proposed well use, location details, ownership authorization, and professional licensing can all be relevant to the application process.
Environmental review can affect an application
A proposed well location may need additional review when nearby environmental conditions create potential groundwater concerns. This is one reason two otherwise similar well applications may not move through review in exactly the same way.
If DNREC identifies a concern, additional site information or technical review may be needed before the agency can make a permitting decision.
After the well is drilled
Well construction does not end with permit issuance. Completion information is important because the final constructed well may need to be documented after field work is finished.
For property research, completion records can be more useful than the original application alone because they can document how the well was actually constructed.
Delaware Well Permit Fees
DNREC maintains a department-wide permit-fee schedule covering Division of Water permits. The current schedule lists a $250 one-time fee for many well-related categories, including domestic potable wells, public potable wells, monitoring wells, observation wells, geothermal wells, irrigation wells, industrial non-potable wells, test wells, reclassification of a well, and authorization to use an existing well.
Some categories differ. DNREC’s schedule lists no permit fee for non-potable fire-protection wells and temporary wells for well construction, while waivers, variances, and alternative-method requests are listed at $1,000.
Verify before filing: Fees can change through legislation or agency updates. Use DNREC’s current permit-fee page rather than relying on an old contractor quote, saved form, archived page, or third-party summary.
| Permit type | Published fee | Frequency |
|---|---|---|
| Potable Well: Domestic | $250 | One-time |
| Monitoring Well / Lysimeter | $250 | One-time |
| Observation Well | $250 | One-time |
| Test Well | $250 | One-time |
| Non-Potable: Fire Protection | None listed | One-time |
Check the latest amounts directly at DNREC Permit Fees.
How to Verify a Delaware Well Contractor or Driller
A permit lookup and a contractor-license lookup answer different questions. The permit record concerns a specific well or application. A professional-license record helps establish whether the person or company performing regulated well work holds an appropriate Delaware credential.
DNREC issues licenses for water well contractors, pump installer contractors, well drillers, and pump installers. The agency states that licenses are required for people who perform these regulated tasks in Delaware.
Before hiring a contractor
- Confirm the contractor is licensed for the proposed work.
- Ask who will prepare and submit the well permit application.
- Make sure required approval is obtained before regulated drilling begins.
- Keep the permit number and final completion information with your property records.
- Ask who is responsible for pump work, abandonment, sealing, or replacement-well requirements.
Water Well Licensing
Review DNREC’s official licensing information for well contractors, drillers, and pump installers.
Check DNREC LicensingWell Permit Program
Review official state well-permit information, application resources, and regulatory guidance.
Visit DNREC Well PermitsSpecial Well Permit Situations to Know About
Higher-volume water withdrawals
The DNREC Well Permits Program manages construction and use permits for wells that withdraw 50,000 gallons per day or less. Higher-volume projects can involve Delaware’s separate water-allocation program, so a well-construction permit should not automatically be treated as authorization for every proposed withdrawal volume.
If a project is expected to use large quantities of groundwater, verify the applicable water-allocation requirements before the well is placed into service.
Public drinking-water wells
Public drinking-water systems involve additional health and drinking-water oversight beyond ordinary private residential well use. Public-water-system compliance information is handled through Delaware’s drinking-water regulatory programs rather than being fully represented by a private well permit search.
Repairing an existing well
Routine maintenance and a significant modification are not necessarily treated the same way. Work that changes a well’s construction, capacity, dimensions, or regulated use can require additional approval.
Before altering an older well, describe the proposed work to a licensed Delaware well professional or DNREC so the correct permit path is used.
Replacement and abandoned wells
A replacement project may involve both a newly permitted well and proper treatment of the failed or abandoned well. An unused well should not simply be ignored, buried, or covered without determining the applicable sealing or abandonment requirements.
If you are buying property with an unused well, ask whether the well was formally abandoned or sealed and whether documentation exists.
Well Permit Records Are Not the Same as Water-Quality Results
A permit concerns regulatory information about well construction or use. It does not establish that the water currently meets every health-related benchmark.
Private well owners should treat water-quality testing as a separate responsibility. Testing is particularly important when water taste, odor, color, or clarity changes, after certain repairs, when nearby contamination is discovered, or when household health circumstances justify additional caution.
Need the permit number before testing? Try the Well Viewer using the property address or parcel number. If the permit number still cannot be identified, contact the Division of Water for assistance.
Private Drinking Water
Use Delaware public-health resources for private well testing and drinking-water guidance.
Delaware Private Well GuidanceEnvironmental Well Information
Use DNREC environmental resources when groundwater contamination or nearby remediation sites may be relevant.
Visit DNRECUsing Well Records During a Property Purchase or Project
Well records are most useful when treated as one part of a broader property review. A buyer may want to know whether a private well is documented, while a contractor may be focused on setbacks, proposed drilling location, environmental review, and licensed installation.
A permit search can also reveal questions that need follow-up. The permit may be old, the map may not show a precise location, the well may have been replaced, or the property may now be served by a public water system.
| Your goal | Check first | Then verify |
|---|---|---|
| Buying a home with a private well | Permit record and well location | Well condition, water testing, and any replacement or abandonment history |
| Planning a new well | Licensed contractor and site conditions | DNREC approval before regulated drilling begins |
| Investigating an older property | Open Data and Well Viewer | Additional agency records if online information appears incomplete |
| Replacing a failed well | New-well permit requirements | Proper sealing or lawful disposition of the old well |
| Researching high-volume use | Well permit and expected withdrawal | Whether water-allocation approval is also required |
Do not treat database silence as legal clearance. A search result shows what is available through that system. It does not guarantee that every historical well, restriction, environmental condition, or current permit obligation has been captured.
DNREC Division of Water Contact and Office Location
Questions about well permits, records, application status, licensing, or unusual property situations can be directed to the Delaware DNREC Division of Water.
Delaware DNREC Division of Water
Richardson and Robbins Building
89 Kings Highway
Dover, DE 19901
Wells / Well Permits:
302-739-9944
Division of Water:
302-739-9949
Many search and status tasks can be completed online. Contact the program before traveling if you need in-person assistance or records not available through public tools.
Official Delaware Well Permit Resources
For current permit status, forms, rules, fees, licensing requirements, and regulatory interpretations, use the responsible Delaware agency as the final authority.
Delaware Well Permit Search FAQs
Who issues well permits in Delaware?
The Delaware Department of Natural Resources and Environmental Control, through its Division of Water, manages Delaware well permitting and related well-program functions. Other agencies may have additional responsibilities for public drinking-water systems or environmental health.
Can I search for a Delaware well permit by address?
The DNREC Well Viewer is the best starting point for property-based searches using available address, parcel, or permit information. The Delaware Open Data Portal can be useful for broader statewide record research.
How far back do Delaware well records go?
DNREC states that its public well-permit dataset includes available information from around 1950 to the present, although data may be limited for wells installed before 1985.
Why can I not see the exact location of every well?
Some well-location information is restricted from public display. Sensitive public drinking-water well locations and other protected information may not appear as precise public map points.
Can I drill my own well without DNREC involvement?
Delaware regulates well construction, and DNREC states that wells must be constructed by a licensed water well contractor. Permit applications for well construction and use are completed by licensed water well contractors, with property-owner authorization also required.
Does every repair require a new well permit?
Not necessarily. Routine repair and a modification that changes a well’s regulated construction or capacity are different situations. Ask DNREC or a licensed Delaware well professional whether the proposed work requires new approval.
How much does a Delaware domestic well permit cost?
DNREC’s current published fee schedule lists a $250 one-time fee for a domestic potable well permit. Confirm the fee on the official schedule before filing because agency fees can change.
Does a well permit prove the water is safe to drink?
No. A permit concerns regulated well construction or use. Water-quality testing is a separate issue, and private well owners should follow Delaware public-health guidance for testing and laboratory analysis.
What if the well permit number on the well tag is unreadable?
Try the DNREC Well Viewer using the property address or parcel number. If you still cannot identify the correct record, contact the Division of Water for help locating the permit information.
Can a well project require more than one type of approval?
Yes. A well-construction permit may not be the only authorization needed for higher-volume withdrawals, public water systems, environmental issues, or other specialized uses. Verify the complete permit path with the appropriate DNREC program.
Best Next Step
Start with the official search tool that matches your question: the DNREC Well Viewer for property-based mapping, Delaware Open Data for broader record research, or the DNREC Well Permit Applications page for application status.
If the record is old, incomplete, restricted, or important to a construction or real-estate decision, confirm the details directly with the Division of Water. For a new well, use a properly licensed Delaware well professional and make sure required approval is in place before regulated work begins. For an existing private drinking-water well, treat permit research and water-quality testing as separate tasks.