Sample ID
BD-2026-1173
Sample Report · Demo Data
Drugs-of-Abuse Surface Residue Screen
Surface Residue Analysis & Interpretation
A 17-analyte surface screen, with a BioDwell scientist's plain-language reading of what your results mean.
Prepared for
The Whitman Family
512 Lakeview Avenue, Nampa, ID 83651 · Pre-purchase inspection
At a glance
Verdict
PassWithin safe limits
Good news — the surfaces we tested are within safe limits.
Every surface we sampled meets residential clearance criteria in all U.S. states with an established standard. Of the 17 substances screened, only a trace of methamphetamine was detected — and that trace sits below the strictest decontamination standard in the country.
Methamphetamine
0.03 µg/100cm²
Below clearance
Strictest U.S. standard
0.05 µg/100cm²
Oregon & Arkansas · result is 40% under
Fentanyl
Not detected
Below the laboratory reporting limit
Where your methamphetamine result falls against state clearance standards
Plotted on a logarithmic scale so the cluster of strict thresholds reads clearly. Lower is cleaner — your result sits at the far left, under every published standard, including the strictest.
Your result — 0.03 (below all standards)
State clearance thresholds
Safe field (under the strictest standard)
Laboratory results
Full 17-analyte panel
Each substance was screened by LC-MS/MS against the comparison standard shown. "Not detected" means the substance was below the laboratory reporting limit — not necessarily absolute zero.
| Analyte | Result | Strictest standard | Status |
|---|---|---|---|
| MethamphetaminePrimary screen analyte | 0.03 µg/100cm² | 0.05 µg/100cm² | Below clearance |
| FentanylAcute-safety priority | Not detected | — | Clear |
| Amphetamine | Not detected | — | Clear |
| Cocaine | Not detected | — | Clear |
| Codeine | Not detected | — | Clear |
| Dihydrocodeine | Not detected | — | Clear |
| Heroin (6-MAM) | Not detected | — | Clear |
| Hydrocodone | Not detected | — | Clear |
| Hydromorphone | Not detected | — | Clear |
| Ketamine | Not detected | — | Clear |
| LSD | Not detected | — | Clear |
| MDA | Not detected | — | Clear |
| MDMA | Not detected | — | Clear |
| Morphine | Not detected | — | Clear |
| Oxycodone | Not detected | — | Clear |
| Oxymorphone | Not detected | — | Clear |
| PCP | Not detected | — | Clear |
1 of 17 analytes detected (trace) · 16 not detected
Standard shown for methamphetamine = Oregon & Arkansas (strictest U.S.)
Interpretation by Dr. Mark Arvin
What your results mean
This is a reassuring result. Of the seventeen substances we screened, only a trace of methamphetamine was detected.
That trace measured 0.03 µg/100 cm² — below even the most stringent state decontamination standard in the country, which is 0.05 µg/100 cm² in Oregon and Arkansas. Every other state that publishes a residential clearance number sets it higher, so your result clears all of them with room to spare.
Just as importantly, fentanyl — the substance of greatest acute safety concern in surface screening — was not detected. The remaining fifteen substances on the panel were not detected either.
Bottom line: Based on these results, the sampled surfaces meet residential clearance criteria in all U.S. states with an established standard. We see nothing here that would point toward decontamination for the areas we tested.
It is worth understanding what a trace detection at this level represents. Finding a small amount of methamphetamine residue is not unusual in previously occupied homes, and a value this far below clearance does not indicate active use or contamination requiring remediation. It simply reflects the sensitivity of the LC-MS/MS method, which can measure substances at concentrations far smaller than any health-based action level.
Recommendations
- No decontamination is indicated based on these surface results. The areas we sampled are within residential clearance criteria.
- Routine cleaning is sufficient for the areas tested — standard household cleaning practices are all that's warranted.
- Optional targeted sampling. If specific other rooms or HVAC components are a concern, additional sampling can be performed for those areas on request.
About this panel
What we tested for
Our comprehensive surface panel covers the substances most commonly addressed in residential clearance and pre-purchase screening, grouped here by category.
Stimulants
The primary focus of residential clearance testing.
Methamphetamine · Amphetamine · Cocaine · MDMA · MDA
Opioids & opiates
Includes fentanyl, the priority for acute surface safety.
Fentanyl · Heroin (6-MAM) · Morphine · Codeine · Dihydrocodeine · Hydrocodone · Hydromorphone · Oxycodone · Oxymorphone
Dissociatives
Screened to round out the comprehensive panel.
Ketamine · PCP
Hallucinogens
Included for completeness in the 17-analyte screen.
LSD
Methodology & limitations
About this test
Collection
Surface wipe samples were collected from a measured 100 cm² template at each location — the Master Bedroom and Living Room — and reported as a composite, as received by the laboratory.
Analytical method
Liquid chromatography–tandem mass spectrometry (LC-MS/MS), a highly specific and sensitive method that identifies and quantifies each analyte individually rather than as a class.
What it shows
The presence and concentration of drug residue on the specific surfaces sampled, compared against published state residential clearance standards.
What it does not show
Results do not assess areas that were not sampled, and a surface screen is not a measure of anyone's health or exposure. Any health questions should be directed to your physician.
Scope of these results. Findings pertain only to the surfaces and areas sampled, as received by the laboratory. A "not detected" result means the substance was below the laboratory reporting limit — it is not a guarantee of absolute zero. Clearance standards cited are state residential decontamination thresholds for methamphetamine and are provided for comparison only; BioDwell does not perform clearance certification on the homeowner's behalf.
Method · LC-MS/MS
Panel · 17-analyte comprehensive
Sample area · 100 cm² / location
Sample ID · BD-2026-1173
Mark L. Arvin
Dr. Mark L. Arvin, Ph.D., MSPH
Chief Science Officer · Senior Environmental Scientist
Jalen Winegar
Jalen Winegar, A.S.
Environmental Specialist