Do you handle soil and water, or just one?

Both. Soil is extracted with methylene chloride or methanol depending on the panel; water is purged-and-trapped (volatiles) or solvent-extracted (semi-volatiles). The method codes are the same — EPA 8260 / 8015 / 8270 — with matrix-specific sample-prep documented on the COA.

What sample size and container do I need?

For volatiles (BTEX / VOC / GRO): 3 × 40 mL VOA vials with no headspace, sodium-bisulfate-preserved if possible. For semi-volatiles (PAH / DRO / SVOC): 8 oz amber glass jar, 50 g of soil. We supply pre-cleaned containers and trip blanks on request — coordinate at submission.

Can you turn this around in 48 hours for a closing date?

Yes. Priority 48-hour pricing is +35 % on the standard panel. Coordinate the sample submission with the lab — we'll confirm receipt time and an SLA target before the clock starts.

How does pricing compare to Pace, Eurofins TestAmerica, or ALS?

Our Phase II ESA Combined panel is $425. Pace is around $595, Eurofins TestAmerica around $645, and ALS Environmental around $525 for the equivalent BTEX + TPH + PAH + RCRA 8 scope. We compete on operating model and pricing transparency rather than national-lab marketing reach.

Do you support chain of custody and rapid-response field work?

Yes. We ship pre-cleaned containers, COC forms, trip blanks, and field-blank evaluation containers. Returned COCs are reviewed at sample receipt and any deviations are flagged on the report. Required for any data going into a regulatory submission or litigation context.

BTEX · TPH (GRO/DRO/ORO) · PAH · Volatile + semi-volatile

Soil, groundwater, tank closure —
the hydrocarbon receipt.

EPA-method petroleum hydrocarbon analysis: BTEX (volatiles), total petroleum hydrocarbons by carbon range (GRO/DRO/ORO), and the 16 EPA priority polycyclic aromatic hydrocarbons (PAHs). For Phase II ESA, Superfund work, tank closure, brownfield redevelopment, and stormwater compliance.

Submit a sample See hydrocarbons pricing

EPA 8015 / 8260 / 8270

Soil, groundwater, surface water

Tank-closure ready

5–7 day standard turnaround

CERTIFICATE OF ANALYSIS
Soil Sample · ESA-2418-S07
GSA-2026-031902
● VERIFIED
MATRIX
Hydrocarbons
METHODS
EPA 8260 + EPA 8015 + EPA 8270
RECEIVED
2026-04-03
ISSUED
2026-04-07
RESULTS
Benzene (BTEX)
< 0.005 mg/kg
≤ 0.03 mg/kg TCEQ
● PASS
TPH-GRO (C6–C10)
12 mg/kg
≤ 100 mg/kg
● PASS
TPH-DRO (C10–C28)
84 mg/kg
≤ 500 mg/kg
● PASS
Naphthalene (PAH)
0.18 mg/kg
≤ 1.0 mg/kg
● PASS
Benzo(a)pyrene
Not detected
≤ 0.062 mg/kg
● PASS

01 · What we test

Six assays. The Phase II ESA hydrocarbon backbone.

Volatile aromatics define site impact at low ppb. Carbon-range TPH bands petroleum-product fingerprints. The 16 EPA priority PAHs anchor risk assessment. We run all three on one bench, with method-blank QC and surrogate recovery on every report.

EPA 8260 (GC-MS)

BTEX (volatile aromatics)

Benzene, toluene, ethylbenzene, total xylenes by purge-and-trap GC-MS. The volatile-aromatic core for any leaking-tank, refinery, or service-station investigation. Reported against TCEQ Texas Risk Reduction Program / EPA RSL action levels.

LOD 0.001 mg/kg · 5–7 days

EPA 8260D

Volatile organic scan (VOC)

Full 60+ analyte VOC scan — chlorinated solvents (PCE, TCE, vinyl chloride), oxygenates (MTBE, ETBE, TBA), and aromatic hydrocarbons. The dry-cleaner / chlorinated-plume workhorse method.

LOD ppb · 5–7 days

EPA 8015C / TX1005

Total petroleum hydrocarbons (GRO)

Gasoline-range organics, C6–C10, by purge-and-trap GC-FID. Petroleum-product fingerprint band that captures gasoline, naphtha, and JP-4 jet fuel impacts.

LOD 1 mg/kg · 5–7 days

EPA 8015C / TX1005

Total petroleum hydrocarbons (DRO + ORO)

Diesel-range (C10–C28) and oil-range (C28–C36) organics by GC-FID with solvent extraction. The petroleum-impacted-soil workhorse for diesel, kerosene, lubricating oil, and heating oil characterization.

LOD 5 mg/kg · 5–7 days

EPA 8270D SIM

Polycyclic aromatic hydrocarbons (PAHs)

16 EPA priority PAHs by GC-MS in selected ion monitoring mode: naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benz(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, indeno(1,2,3-cd)pyrene, dibenz(a,h)anthracene, benzo(g,h,i)perylene.

LOD 0.01 mg/kg · 5–7 days

EPA 8270E

Semi-volatile organic scan (SVOC)

Full 8270 semi-volatile scan: phenols, phthalates, nitroaromatics, chlorinated benzenes, plus the 16 PAHs. The base/neutral/acid extraction workflow for comprehensive site characterization.

LOD 0.05 mg/kg · 5–7 days

02 · Hydrocarbons pricing

Published. Per-test.
No quote calls.

Every assay a la carte, every panel bundled. Bulk discount at 5+ samples. Prices below reflect a single-compound submission.

BTEX + TPH

$195/ sample

BTEX volatile aromatics (EPA 8260) plus gasoline + diesel-range TPH (EPA 8015). The leaking-tank workhorse panel.

BTEX (B / T / E / total X)
TPH-GRO (C6–C10)
TPH-DRO (C10–C28)
Method-blank QC
Tank-closure formatted report

Order

Where hydrocarbon investigations turn up impact.

Petroleum-product impact concentrates by source type, weathering window, and matrix. Knowing the marker compound for each scenario shapes the right testing scope at the right cost.

Benzene (LUST sites)

EPA 8260 · ppb · groundwater

Very high risk

Most-cited LUST (leaking underground storage tank) action driver. Texas TRRP residential PCL ≤ 5 µg/L; concentrates in groundwater above gasoline plumes.

TPH-DRO (heating oil / diesel)

EPA 8015 · mg/kg · soil

High risk

Diesel-range organics most common in tank-closure work. C10–C28 band — a tight cluster suggests fresh release; broader weathered band suggests historical impact.

Benzo(a)pyrene

EPA 8270 SIM · mg/kg · soil / sediment

High risk

PAH risk-driver of record. EPA RSL 0.062 mg/kg residential soil; concentrates in urban fill, road runoff, and historic coal-tar / creosote impact zones.

MTBE / TBA (oxygenates)

EPA 8260 · ppb · groundwater

High risk

Pre-2006 reformulated-gasoline marker. Travels further than benzene in groundwater; lingers as TBA degradation product. Add the oxygenate panel on suspected gasoline sites.

Naphthalene (creosote / coal-tar)

EPA 8270 SIM · mg/kg

High risk

Lightest PAH; semi-volatile and highly mobile. Marker for creosote-treated wood, coal-tar epoxy, manufactured-gas plant impacts. Often reported on its own as a risk driver.

Vinyl chloride (chlorinated plumes)

EPA 8260 · ppb · groundwater

High risk

Reductive-dechlorination daughter of PCE / TCE. Federal MCL 2 µg/L drinking water. Common downgradient marker on dry-cleaner / industrial chlorinated-solvent plumes.

04 · Compliance

EPA, RCRA, TRRP, ASTM — the spec your reviewer cites.

Hydrocarbon work is method-driven and reviewer-driven. Every COA we sign maps directly to the EPA / TCEQ / ASTM method or action level your reviewer is reading against.

EPA 8260D

Volatile organics by GC-MS

Purge-and-trap GC-MS for volatile organics — BTEX, chlorinated solvents (PCE, TCE, vinyl chloride), oxygenates (MTBE, ETBE), and aromatic hydrocarbons. Reference method for VOC characterization in soil, water, and air.

EPA 8015C

Petroleum hydrocarbons (TPH) — DRO / GRO / ORO

GC-FID quantitation by carbon-range bands: gasoline-range (C6–C10), diesel-range (C10–C28), oil-range (C28–C36). Used for tank-closure characterization and petroleum-product fingerprinting.

EPA 8270D / 8270 SIM

Semi-volatile organics & PAH

GC-MS for semi-volatile organics including the 16 EPA priority PAHs. SIM mode achieves the low-ppb sensitivity required for residential and ecological risk assessment.

TCEQ TRRP

Texas Risk Reduction Program

Texas-specific Protective Concentration Levels (PCLs) for soil, groundwater, and air. We report observed values vs the residential and commercial Tier 1 PCL on every Texas site COA.

ASTM E1527-21

Phase I / II Environmental Site Assessment

ASTM E1527-21 governs Phase I ESA (records review) and Phase II (sampling). Our Phase II ESA Combined panel (BTEX + TPH + PAH + RCRA 8) generates the analytical data Phase II reports require.

EPA RSL

Regional Screening Levels

EPA Regional Screening Levels for residential and industrial soil + tap water. Default conservative values for risk-based screening when state action levels are not available.

05 · Questions

Before you ship.

Still stuck? Email us — we reply within a business day.

The BTEX + TPH (GRO + DRO) panel is the LUST-closure workhorse — that's what TCEQ Subchapter A and most state UST programs ask for. Add MTBE / oxygenates ($45) on any gasoline site, and the PAH 16-analyte panel ($245) on any heavier-petroleum (diesel, fuel-oil, used-oil) impact. The Phase II ESA Combined panel ($425) bundles BTEX + TPH + PAH + RCRA 8 metals for the cleanest single-COA outcome.

Close the tank. Sign the Phase II.

BTEX, TPH (GRO/DRO/ORO), PAH on one Houston bench. Tank-closure formatted COA with method-blank QC and surrogate recovery on every report.

Submit hydrocarbons sample Verify a COA

Soil, groundwater, tank closure —the hydrocarbon receipt.

Six assays. The Phase II ESA hydrocarbon backbone.

BTEX (volatile aromatics)

Volatile organic scan (VOC)

Total petroleum hydrocarbons (GRO)

Total petroleum hydrocarbons (DRO + ORO)

Polycyclic aromatic hydrocarbons (PAHs)

Semi-volatile organic scan (SVOC)

Published. Per-test.No quote calls.

Where hydrocarbon investigations turn up impact.

EPA, RCRA, TRRP, ASTM — the spec your reviewer cites.

Before you ship.

Close the tank. Sign the Phase II.

Soil, groundwater, tank closure —
the hydrocarbon receipt.

Published. Per-test.
No quote calls.