Have you ever needed to prove the history of your water well and not known where to start?
How Do I Maintain Water Well Records?
Maintaining accurate water well records helps you protect your water supply, meet legal requirements, and make informed decisions about well care. This guide shows you what to track, how to organize files, and practical tips for keeping records useful and accessible.
Why maintaining well records matters
You rely on your well for water, and records are the history of that system. Good records protect public health, help you spot problems early, and increase property value when you sell. They also reduce guesswork during repairs, inspections, and emergencies.
Legal and regulatory reasons to keep records
Regulations for well drilling, construction, testing, and abandonment vary by state and country, but most jurisdictions require basic documentation. Keeping complete records helps you comply with local laws and provides proof if you need to demonstrate proper construction, testing, or sealing of an abandoned well.
Practical reasons to maintain records
Beyond legal compliance, records let you monitor trends in water quality and yield, schedule maintenance, and communicate accurately with contractors or health departments. You’ll save time and money when service technicians don’t need to rediscover system details.

What types of records should you keep?
Keeping a variety of documents gives a complete picture of the well’s life. Store copies of drilling logs, construction diagrams, test results, maintenance records, water treatment details, service invoices, and correspondence with authorities. Each record type answers specific questions about capacity, water quality, and system changes.
Key categories of well records
Below is a table to help you quickly identify essential record categories and examples of each.
| Category | Examples |
|---|---|
| Construction & Drilling | Driller’s log, construction diagram, casing depth and material, screen depth, permits |
| Development & Testing | Well yield test, pumping rate, static water level, specific capacity |
| Water Quality | Bacteriological tests (coliform/E. coli), chemical tests (nitrate, arsenic), radiological tests |
| Pump & System | Pump make/model/serial number, installation date, motor specs, pressure tank size |
| Maintenance & Repairs | Service dates, parts replaced, well cleanings, disinfection events |
| Treatment Devices | Filters, softeners, UV systems, replacement schedules, maintenance logs |
| Abandonment & Sealing | Sealing certificate, method of abandonment, contractor report |
| Ownership & Legal | Deeds, well permits, transfer documents, easements |
| Emergency & Miscellaneous | Flood damage reports, contamination events, correspondence with regulators |
What specific details should you record for a well?
You should record technical details, test results, service actions, and administrative items. The more precise and consistent you are, the more useful the file will be over time.
Recommended fields to include in each well file
This table lists recommended fields for a complete well record. Use it to build a checklist or digital form.
| Field | Why it matters |
|---|---|
| Well ID / permit number | Official reference used by agencies and contractors |
| Property address & GPS coordinates | Exact location for mapping and emergency response |
| Owner contact info | For notifications or legal issues |
| Driller name & license | For follow-up or warranty work |
| Drilling date | Shows age and may suggest when major service is needed |
| Static water level (depth) | Baseline for monitoring yield and seasonal changes |
| Pumping test results (yield, drawdown) | Confirms sustainable yield and informs pump sizing |
| Casing depth & diameter | Important for repair and compatibility with pumps |
| Screen type & depth | Affects sediment and water quality behavior |
| Wellhead details & sealing | Shows protection level from surface contamination |
| Pump type, model, depth setting | Critical for repairs and replacement |
| Chlorination or treatment events | Records of disinfection or remediation actions |
| Water quality test dates & results | Tracks safety and trends for contaminants |
| Maintenance & repair log | History of interventions and costs |
| Abandonment documentation | Legal confirmation of proper sealing when applicable |
How to collect records when a well is new
When your well is drilled or a pump is installed, ask for copies of all documentation before the contractor leaves. If you don’t receive records, request them in writing and keep a dated copy of your request.
What to request from drillers and contractors
Ask for drilling logs, completion diagrams, permits, yield tests, pump specifications, and any warranty paperwork. Make sure the documents include dates, measurements, and signatures when required.

How to maintain a continuing log of water quality and testing
Regular water testing is essential for your health and record integrity. Create a schedule and keep test certificates in one place. Test frequency depends on use and risk factors, but at minimum you should conduct bacterial tests annually and chemical testing every few years or when contamination is suspected.
Typical testing schedule
- Bacteriological test (coliform/E. coli): at least once per year, and after any repair or contamination event.
- Nitrate/nitrite: every 1–3 years, or more often if agricultural activities are nearby.
- Arsenic, lead, volatile organic compounds (VOCs): initial baseline and repeat if results are near concern levels or land use changes.
- Radionuclides: depending on geology and regulatory guidance.
Include results, lab names, sample locations, and chain-of-custody forms if available.
How to record maintenance, repairs, and service calls
Treat every service event as a recordable occurrence. Note the date, reason for service, technician name, work performed, parts used, cost, and any follow-up recommendations. These histories help identify recurring problems and inform future decisions.
Sample maintenance log entry
- Date: 2024-06-12
- Technician: Smith Pump Co., License #12345
- Reason: Low pressure complaints
- Action: Replaced pressure switch and tested pump; checked pressure tank air charge
- Parts: Pressure switch model X, cost $45
- Result: Normal pressure restored; recommended monitoring tank for leaks
- Invoice #: 7890
Digital vs paper records: pros and cons
You can use paper, digital, or hybrid systems. Each has advantages: paper copies are simple and legally recognizable, while digital files are searchable, backed up, and easy to share. Choose what suits your habits but ensure backup and security.
Digital file best practices
- Use clear filenames (e.g., 2024-06-12_PumpService_SmithPumpCo.pdf).
- Keep a consistent folder structure (Construction, Testing, Maintenance, WaterQuality, Legal).
- Back up to at least two locations: local external drive and cloud storage.
- Use PDF format for documents to preserve formatting.
- Protect sensitive information with access controls or encryption if necessary.

Organizing physical files
If you use paper files, label folders clearly and keep them in a dry, fire-resistant location. Use an index or binder to make retrieval fast. Keep originals of legal documents and certified copies of permits.
Suggested physical folder structure
- 01_Construction
- 02_Permits_and_Licenses
- 03_Pumping_Tests
- 04_Water_Quality
- 05_Maintenance
- 06_Treatment
- 07_Abandonment
- 08_Sales_Transfers
How long should you retain different records?
Retention periods vary by jurisdiction, but some practices are widely recommended. Keep critical documents permanently; others can be retained for specific timeframes.
Typical retention timeline
| Document type | Retention recommendation |
|---|---|
| Construction & drilling logs | Permanent |
| Well completion diagrams | Permanent |
| Pump installation records | Permanent |
| Water quality test results | At least 5–10 years; keep older records if they show trends |
| Maintenance & service invoices | At least 7 years; hold permanently for warranty reference |
| Abandonment/sealing certificates | Permanent |
| Permits & ownership documents | Permanent |
How to create a well record template
A template standardizes data capture and reduces missing information. You can make a printed form or a digital spreadsheet/database capturing the recommended fields from earlier.
Example sections for a template
- Well identification (ID, location, owner)
- Construction details (depths, materials)
- Testing results (dates, labs, values)
- Pump and system details (specs, serials)
- Maintenance log (date, action, technician)
- Notes and attachments (photos, invoices, permits)

Using a spreadsheet or database for trend analysis
Once you record regular measurements (static water level, drawdown, test results), use a spreadsheet or simple database to plot trends. This helps you detect declining yield, contamination trends, or seasonal fluctuations.
Spreadsheet tips
- Use separate sheets for different data types (water levels, lab results, service costs).
- Use date columns and standardized units.
- Create charts for water level and contaminant concentration over time.
- Add conditional formatting to flag values above advisory or regulatory limits.
Mapping and labeling your well
Labeling the well location on property maps and marking the wellhead with an ID number ensures quick identification. Include GPS coordinates in records for precise location.
What to include on a property map
- Exact well location relative to structures and boundaries
- Nearby potential contamination sources (septic systems, fuel tanks, agricultural fields)
- Easements or access roads
- Any adjacent wells or monitoring points
What to do with records when you sell or buy property
Records are a selling point and a legal consideration during property transfer. If you sell, provide copies of the well records to the buyer and retain originals. If you buy property, request well records as part of due diligence and arrange baseline testing and inspections before closing.
Transfer checklist for sellers
- Provide copies of construction and testing documents
- Supply maintenance and service history
- Share recent water quality test results
- Include documentation for treatment devices and warranties
- Give contact info for service providers and the original driller if available

Handling older wells or missing records
If historical records are incomplete or missing, you can reconstruct a useful file. Start with a current inspection, a pump test, and baseline water quality tests. Photograph the wellhead and serial numbers on equipment. Contact the local regulator for any archived permits or drillers’ logs.
Steps to reconstruct a file
- Schedule a professional inspection and pump test.
- Take baseline water quality samples from the tap and well.
- Photograph the wellhead, access plates, and any visible markings.
- Search county or state permit offices for historical records.
- Compile invoices and notes from past services if you can obtain them.
How to document seasonal or event-based changes
Record events like flooding, drought, land-disturbing activity, or nearby spills. These notes help correlate changes in water quality or yield with external factors.
Example event log entry
- Event: Heavy flood after storm X
- Date: 2023-11-05
- Observations: Debris around wellhead; water discoloration for two days
- Actions: Disinfected well on 2023-11-07; bacterial test negative on 2023-11-09
Managing records for multiple wells or rental properties
If you manage multiple wells, use a standardized system and unique IDs for each well. Centralize records in a single database or cloud folder and use filters or tags to find specific wells quickly.
Tips for landlords and managers
- Create a master spreadsheet with one row per well and key fields (address, permit number, last test date).
- Set calendar reminders for testing and maintenance.
- Include tenant notification protocols for sample collection or service.
Sharing records with regulators, contractors, or buyers
Be prepared to share relevant parts of your record file. Use PDFs for official sharing and avoid sending editable files with macros or embedded scripts. Provide summaries plus full reports when requested.
How to present records
- Provide a clear cover sheet summarizing the most important facts (well ID, last test, pump info, any issues).
- Attach supporting documents in chronological order.
- Keep a copy of anything you send and note the recipient, date, and method of delivery.
Privacy and security considerations
Your well records may include personal contact details and property information. Protect those with appropriate access controls, especially for digital files. If you share records publicly, redact personal information if possible.
Preparing records for emergencies
In case of contamination, fire, flood, or other emergencies, quick access to records helps responders and health officials. Include emergency contact details, a recent water quality test, and a sketch of the well location in an emergency folder.
Emergency folder contents
- Recent bacterial and chemical test results
- Well location map and GPS coordinates
- Contact list (driller, local health department, favorite pump service)
- Photographs of wellhead and system
- Insurance and property documents if relevant
Best practices checklist for maintaining well records
Use this checklist to confirm you’ve covered the essentials and are following good habits.
- Create and label a permanent well file (physical and/or digital).
- Collect construction and permit documents at the time of drilling.
- Store pump and system specifications with invoices and warranties.
- Test water quality regularly and retain lab reports.
- Log all maintenance, repairs, and service calls with details.
- Back up digital records in multiple locations and secure them.
- Keep permanent copies of abandonment or sealing certificates.
- Provide records to buyers and update files after any major service.
- Keep a dated index at the front of the file summarizing contents.
Sample timeline for routine records maintenance
- Immediately after installation: Obtain and file all construction and pump installation documentation.
- Within 30 days: Conduct initial water quality baseline tests.
- Annually: Bacterial test and inspection of the system.
- Every 1–3 years: Chemical testing depending on local risk.
- After any servicing or repair: Add detailed service notes and invoices.
- After any contamination event: Conduct testing and document remediation steps.
- Upon sale or transfer: Compile and provide a complete records packet.
Common mistakes to avoid
You’ll be most effective if you avoid common recordkeeping errors: keeping disorganized files, failing to back up, discarding old test results, or relying only on memory. Also don’t delay requests for missing documents from contractors or regulators.
When to involve professionals
If you’re unsure about construction details, interpretation of test results, or legal requirements, consult a licensed well driller, hydrogeologist, or local health department. Their expertise can help you interpret records and plan next steps.
How regulators can help you find records
Many county or state agencies maintain well permit and completion archives. Contact your local well permitting office or health department to ask about available records tied to permit numbers, addresses, or owner names. Be prepared to provide proof of ownership for some requests.
What to do with abandoned wells and their records
If you abandon a well, follow local requirements for sealing and obtain an official abandonment certificate. Retain this document permanently and include photos and contractor statements about the method used.
Why abandonment documentation is important
Properly sealed wells prevent contamination and liability. Abandonment certificates prove compliance and avoid future regulatory or neighbor disputes.
Summary: making records work for you
Maintaining water well records protects your water supply, meets legal obligations, and saves money by preventing redundant work. You should collect every relevant document, keep a consistent filing system, back up files, and routinely add new test results and service notes. Treat your well records as a living file that grows more valuable the longer you keep it.
Quick starter template (one-page)
You can create a one-page quick reference card to keep near the well or in your home file. Include:
- Well ID / Permit Number
- GPS coordinates & property address
- Owner name and contact
- Driller name & license
- Drilling date and depth
- Last pump test date & yield
- Last bacterial test date & result
- Pump model & installation date
- Nearest service company & phone number
Keep the full file stored safely but carry this one-page summary for emergencies or buyers.
Final tips for everyday recordkeeping
Treat recordkeeping as a habit. After any service or test, file the document that same day. Keep digital backups synchronized and review your file annually to ensure nothing is missing. With a few minutes of maintenance each time something changes, you’ll have an invaluable resource for long-term well stewardship.
If you want, I can provide a downloadable checklist, a printable template, or a sample spreadsheet layout to help you get started. Which would be most useful to you?
