DFW Well Service

Concerned about your water quality?

Cloudy water, odors, staining, or a failed test result are all worth a closer look. We can help with testing, treatment, and well evaluation.

Request Service Call (940) 536-8560

Water Testing

Certified lab results for bacteria, nitrates, minerals, and more. Required by most lenders — and essential for any property with a private well.

Call (940) 536-8560 Schedule Testing
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Know What's in Your Water

Private well water is not regulated by a utility or municipality — you are responsible for knowing what's in it. Water quality testing is the only way to confirm your water is safe to drink, free from agricultural runoff, and free from the bacterial contamination that can enter a well through a cracked casing or improperly sealed wellhead.

We collect samples on site and deliver them to a TCEQ-certified laboratory. Results are provided on certified lab letterhead — accepted by all major mortgage lenders including FHA, VA, USDA, and conventional lenders.

Test Panels

Panel What's Tested Approx. Cost Best For
Bacteria Panel Total coliform + E. coli $30–$80 Mortgage requirement, annual maintenance, after flooding
Standard Residential Bacteria + nitrates + iron + manganese + hardness $100–$175 Pre-purchase, general health screening
Comprehensive Pre-Purchase Standard + pH + TDS + sulfate + pesticide screen $200–$400 Real estate transactions, agricultural neighbors
Custom Panel Targeted tests based on symptoms (sulfur, arsenic, VOCs, etc.) Varies Odor, taste, or color complaints; industrial area proximity

Lab costs are approximate and vary by panel. We will confirm pricing when you schedule.

Common Water Quality Issues in North Texas

High iron & manganese

Hood, Parker, Erath, Palo Pinto, Wise

Orange staining on fixtures and laundry, metallic taste

Hardness

Most of North Texas

Scale buildup on appliances and fixtures, reduced soap lather

Elevated nitrates

Agricultural counties — Cooke, Grayson, Navarro

Health concern for infants and pregnant women

Hydrogen sulfide (sulfur smell)

Erath, Hood, Palo Pinto, parts of Parker

Rotten egg odor, corrosion of copper plumbing

Frequently Asked Questions

What water tests are required for a mortgage in Texas?
FHA, VA, and USDA loans consistently require a bacteria-free water test (total coliform and E. coli) before approving a mortgage on a property with a private well. Some lenders also require a nitrate test, especially in agricultural counties. We provide certified lab results on TCEQ-approved lab letterhead, suitable for lender submission.
How long does water testing take?
Sample collection takes 30–60 minutes on site. Lab turnaround is typically 3–7 business days depending on the test panel ordered. Bacteria tests (coliform/E. coli) are on the faster end; pesticide and VOC panels can take 5–10 business days. For real estate transactions under contract, factor lab turnaround into your inspection contingency period.
What does a basic water test cover?
A basic panel covers total coliform and E. coli bacteria — the tests most commonly required by lenders. A standard residential panel adds nitrates, iron, manganese, and hardness. A comprehensive pre-purchase panel adds pH, total dissolved solids, sulfate, and a pesticide screen. We recommend the panel based on your county and the land use of neighboring properties.
How do I know what to test for in North Texas?
In North Texas, the most common water quality concerns by region are: high iron and manganese (widespread in Hood, Parker, Erath, Palo Pinto, and Wise counties); elevated nitrates near agricultural land; hydrogen sulfide (rotten egg smell) in wells tapping certain Trinity and Paluxy formations; and hardness/scaling across most of the service area. We tailor the test panel to your location and any symptoms you have noticed.
Can I collect the sample myself?
For most bacteria tests, the lab provides a sterile collection kit with specific instructions for cold-water sample collection. Proper technique matters — contamination of the sample kit can produce a false positive. We offer on-site sample collection as part of an inspection or as a standalone service to ensure the sample is collected correctly and delivered to the lab on time.
What happens if my water tests positive for bacteria?
A positive bacteria result means you should not drink the water until the source is identified and resolved. The first step is shock chlorination — disinfecting the well with household bleach, letting it sit 12–24 hours, flushing thoroughly, and retesting 3–5 days later. If the well tests positive again after two shock chlorination cycles, a physical inspection of the wellhead and casing is needed to find the contamination source.

Request Water Testing or Service

Tell us what you are seeing — cloudiness, odor, staining, failed test — and we will follow up.

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