The most useful water testing service for well owners — combining real lab certification with practical treatment recommendations
Tap Score solves a real problem: most homeowners can't get useful water testing without scheduling an inspection from a treatment company that's also trying to sell them a system. Tap Score gives you independent lab analysis, comprehensive panels designed specifically for well water, and a results report that includes actual treatment recommendations — not just a list of numbers. Run by SimpleLab Inc., the kits use EPA-certified laboratories. The honest limitations: it's not the cheapest option (test strips are $20), and you have to ship a sample which adds 7–10 days. But for any treatment decision involving more than $200, getting Tap Score data first saves you from buying the wrong system.
- EPA-certified laboratories — real, verifiable data
- Well water-specific panels (Essential, Advanced, Extended)
- Specialty kits: iron speciation, coliform, PFAS, hardness
- Reports include specific treatment recommendations
- Clean, readable result reports with regulatory comparisons
- Customer support that actually understands water chemistry
- 30-day satisfaction guarantee
- Pre-paid shipping in both directions
✓ What we like
- More expensive than test strips (~$60–$400 depending on kit)
- Ships from California — 7–10 business days for results
- Hydrogen sulfide can dissipate in transit (use field tester for sulfur)
- Bacterial cultures take 1–2 days longer than chemical tests
- Requires online account to view results (no paper-only option)
✗ What to know
What is Tap Score?
Tap Score is the consumer water testing brand of SimpleLab Inc., a water testing company that operates a network of EPA-certified laboratories. The service is built around a simple idea: homeowners should be able to get the same quality of water testing that municipal utilities and water professionals use, without needing to schedule an inspection or hire a consultant.
You order a kit online, collect water samples at home using the included containers, and ship the samples back in pre-paid packaging. The lab analyzes the samples using EPA-approved methods and returns a detailed report through your online account, typically within 7–10 business days. The report includes raw data, comparisons to EPA and state regulatory limits, and specific treatment recommendations based on your results.
SimpleLab is well-known in the water testing space — their labs are used by water professionals, journalists investigating water quality stories, and homeowners across all 50 states. The Tap Score consumer brand is essentially their attempt to bring lab-grade testing directly to people who need it.
The well water test kits — what's available
Tap Score offers multiple kits for well water owners, each with different breadth and depth. The right one depends on what you suspect is in your water and what treatment decision you're trying to make.
Tap Score also sells city water kits, lead-specific kits, PFAS kits, and a range of single-parameter tests. For well water owners, the panels above are the ones most likely to be relevant.
What's actually in the box
When your kit arrives (typically 2–4 days after ordering), the box contains everything needed to collect and ship your sample. Tap Score has put real thought into the packaging — collecting a water sample for lab testing requires specific handling to keep results accurate, and the kit makes that easy.
- Pre-labeled sample bottles (specific to your test panel — different containers for different parameters)
- Preservative ampules where required (for parameters that degrade between collection and lab arrival)
- Sterile gloves for bacterial samples
- Detailed instructions for how to flush your tap, collect the sample, and handle each container
- Pre-paid return shipping label (priority mail back to the lab)
- Cold pack for samples that need temperature-controlled shipping
- Online account activation card for accessing your results
Sample collection takes about 15 minutes. The instructions are clear about which tap to use (cold side, no aerator), how long to flush before collecting, and which order to fill the containers. Following the instructions exactly matters — improper sampling is the #1 cause of testing problems and Tap Score's documentation is built to prevent it.
The lab process
Once your sample arrives at the lab (typically 2–3 days after you ship it), it enters the analysis queue. Tap Score uses EPA-approved lab methods for every parameter — the same methods that municipal utilities use for compliance testing. The specific methods depend on what you ordered:
- Metals (lead, iron, arsenic, etc.): ICP-MS (inductively coupled plasma mass spectrometry) — the gold standard for trace metals analysis
- Bacteria: EPA Method 9223 or equivalent — culture-based testing that identifies total coliform and E. coli
- Nitrates and nitrites: Ion chromatography
- VOCs and pesticides: Gas chromatography-mass spectrometry (GC-MS)
- PFAS: EPA Method 537.1 or 533 — the methods used for compliance and regulatory reporting
Total turnaround from when you ship to when you receive results is typically 7–10 business days. Bacterial cultures add 1–2 days because the cultures need time to grow.
The results report — what you actually get
This is the part that genuinely separates Tap Score from cheaper alternatives. Most labs return raw numbers — a list of contaminants and concentrations with no context. Tap Score's reports are designed for homeowners to actually understand and act on.
Each report includes:
- A summary card — quick visual overview of which contaminants are within safe limits, which are elevated, and which require action
- Detailed parameter list — every contaminant tested, with your concentration, the EPA limit, and the health goal (HRL) where applicable
- Health risk explanations — what each elevated contaminant means and why it matters
- Treatment recommendations — specific guidance on which type of filter or treatment system addresses your specific results
- Comparisons to local averages — how your water compares to other tests in your area
- Downloadable PDF — for sharing with plumbers, contractors, or family members
The treatment recommendations matter more than people realize. If your iron is 3 PPM, the report doesn't just say "iron is high." It explains whether your water has dissolved (ferrous) iron or oxidized (ferric) iron — which determines whether you need an oxidizing filter, a softener with iron-removal capacity, or air injection. That advisory layer prevents buying the wrong system.
Tap Score vs at-home test strips
A common question: why pay $150 for Tap Score when test strips are $20? The answer is what each one actually measures.
Test strips are useful for quick screening — particularly hardness and pH. But they cannot accurately measure low concentrations of the contaminants that actually matter for health decisions (lead, arsenic, fluoride, PFAS) or distinguish iron types that determine which filter you need. For any system purchase decision over $200, lab testing is the right level of investment.
Is Tap Score legit?
A reasonable question. There are a lot of mail-in water testing services online, and not all of them are equally credible. Tap Score is genuinely legitimate for several specific reasons:
- SimpleLab is a real water testing company — not a reseller or middleman. The same labs that handle Tap Score consumer kits also handle commercial and regulatory testing.
- EPA-certified laboratories — the labs are accredited under the EPA's National Environmental Laboratory Accreditation Conference (NELAC) standards.
- Used by water professionals — Tap Score is referenced and used by water treatment professionals, journalists, and environmental health researchers.
- Transparent methodology — every report identifies the specific EPA method used for each parameter, so results are independently verifiable.
- Real customer support — actual humans with water chemistry knowledge answer questions about results, not generic CSRs reading scripts.
The honest concern with any mail-in service: improper sample handling can affect results. Tap Score's documentation is thorough, but the responsibility for following the protocol falls on you. Read the instructions before collecting your sample, not after.
Who should buy each kit
Essential Well Water Test (~$150)
Best for first-time well owners on a budget who need the foundation parameters: hardness for softener sizing, iron and manganese for filtration decisions, pH for acid/neutralizer needs, basic bacteria. If you're buying a $1,000–$2,000 treatment system, this kit gets you the data to size it correctly.
Advanced Well Water Test (~$280) — recommended starting point
The kit we recommend for most well owners. Includes everything in Essential plus nitrates (critical for households with infants or pregnant women), fluoride, arsenic, and a wide metals panel. The added breadth is worth the price difference because health-relevant contaminants like arsenic are odorless and tasteless — only detectable through lab testing.
Extended Well Water Test (~$400+)
For properties near agricultural operations (pesticide and herbicide runoff), industrial sites (VOCs), or military/firefighting training facilities (potential PFAS). The wider parameter panel catches contaminants that are otherwise invisible. If your well is in a rural area with intensive farming, this is worth the upgrade.
Iron Speciation Test (~$130)
For homeowners who already know they have an iron problem and need to determine which type. Ferrous (dissolved) iron requires different filtration than ferric (oxidized) iron. Choosing the wrong filter wastes money and doesn't fix the problem. This kit answers that question for under $130.
Coliform Bacteria Test (~$60)
EPA recommends annual bacterial testing for private wells. This is the kit for routine annual testing or after any event that could compromise the well (flooding, septic issues, recent well work). At $60, it's the cheapest entry point into Tap Score's lab service.
Final verdict
Tap Score is the at-home water testing service we recommend most for well water owners. The combination of EPA-certified labs, well water-specific test panels, and reports that include actual treatment recommendations makes it more useful than generic alternatives. The pricing is fair for what you get — significantly cheaper than hiring a water treatment consultant, with results that are just as actionable.
For most well water owners making a treatment decision, we recommend starting with the Advanced Well Water Test. It covers the contaminants most likely to affect treatment decisions and provides the data depth needed to size a system correctly. If you've already identified a specific concern (iron type, bacteria, PFAS), the targeted single-issue kits are a more efficient way to confirm what you suspect.
The bottom line: don't buy a $1,500+ treatment system based on guesses or test strip readings. Spend $150–$280 on real lab data first. The right system for your specific water saves more than the testing cost — usually many times over.
Browse Tap Score Kits →Frequently asked questions
Is Tap Score legit?
Yes. Tap Score is the consumer testing brand of SimpleLab Inc., a real water testing company that uses EPA-certified laboratories. Reports include actual lab data, regulatory comparisons, and treatment recommendations. The service is legitimate, professionally run, and used by homeowners, journalists, and water professionals across the country.
How much does a Tap Score water test cost?
Tap Score kits range from about $60 for single-parameter tests (like coliform bacteria) to $400+ for the comprehensive Extended Well Water Test. The most popular well water options are the Essential Well Water Test (~$150) and the Advanced Well Water Test (~$280). Pricing reflects the breadth of contaminants tested and the specific lab methods used.
How long does Tap Score take to return results?
Most Tap Score reports are delivered within 7–10 business days from when the lab receives your sample. Bacterial tests can take longer if cultures need to grow. You'll get an email when results are ready and can access the full report online through your Tap Score account.
Which Tap Score test should I get for well water?
For most well water owners, the Advanced Well Water Test (~$280) is the right starting point — it covers hardness, iron, manganese, pH, TDS, nitrates, fluoride, and a wide metals panel. Choose the Essential Well Water Test (~$150) if budget is tight and you only need the basics. Choose the Extended Well Water Test (~$400+) if you live near agricultural operations and want VOC, pesticide, and herbicide screening.
Does Tap Score test for PFAS?
Yes. Tap Score offers a dedicated PFAS Water Test that screens for the specific perfluorinated compounds regulated by EPA. PFAS testing is also included in the Extended Well Water Test. If you suspect PFAS contamination from manufacturing, military, or firefighting training sites in your area, the dedicated PFAS test is the most thorough option.
Can I test my well water with strips instead?
Test strips are useful for screening (hardness, pH, basic iron) but they cannot accurately measure low concentrations of arsenic, lead, fluoride, nitrates, or PFAS — which are exactly the contaminants that matter most for health decisions. For any treatment system purchase decision, lab testing is necessary. Strips can complement lab testing, but they cannot replace it.
Does Tap Score include treatment recommendations?
Yes. Tap Score reports include specific treatment recommendations based on your results — not generic "this contaminant is bad" commentary. If your iron is high, the report identifies what type of iron filter is appropriate. If hardness is high, it recommends softener capacity. That advisory layer is what separates Tap Score from labs that only return raw numbers.