EPA 533 / 537.1 PFAS · EPA 200.8 metals · FDA Closer-to-Zero

Drinking water, food, beverage —
the regulator-ready receipts.

EPA-method PFAS panels for drinking water (533, 537.1, 1633), EPA 200.8 metals for the Lead & Copper Rule and Arsenic Rule, plus the FDA Closer-to-Zero metals + pesticide / mycotoxin / adulterant panels for baby food, juice, infant cereal, seafood, and beverages. The full water-and-food bench on one COA.

EPA 533 / 537.1 / 1633 PFAS
EPA 200.8 drinking-water metals
FDA Closer-to-Zero ready
Mycotoxin + adulterant screens
CERTIFICATE OF ANALYSIS
Municipal Water + Infant Cereal · DW-2418 + IRC-2418
GSA-2026-024412
● VERIFIED
MATRIX
Drinking Water / Food & Bev
METHODS
EPA 533 + EPA 200.8 + ICP-MS + LC-MS/MS
RECEIVED
2026-04-03
ISSUED
2026-04-07
RESULTS
PFOA (drinking water)
2.1 ng/L
MCL 4 ng/L (EPA)
● PASS
PFOS (drinking water)
1.8 ng/L
MCL 4 ng/L (EPA)
● PASS
Lead (drinking water)
3 ppb
Action 15 ppb
● PASS
Inorganic As (infant cereal)
62 ppb
≤ 100 ppb (FDA)
● PASS
Aflatoxin B1 (cereal)
Not detected
≤ 0.1 ppb
● PASS
01 · What we test

Eight assays. Two regulatory regimes. One COA.

EPA covers the water; FDA covers the food. Most utilities, beverage producers, and packaged-food brands need both — the same instrument stack runs both with the right method codes and matrix prep on each sample.

01
LC-MS/MS isotope dilution

PFAS — EPA 533 (drinking water)

25-analyte PFAS panel for finished drinking water by isotope dilution direct injection. Includes the 6 EPA-regulated analytes (PFOA, PFOS, PFHxS, PFNA, HFPO-DA / GenX, mixture) plus the EPA UCMR 5 list. Sub-ppt sensitivity.

LOD 1 ng/L · 5–7 days
02
LC-MS/MS SPE

PFAS — EPA 537.1 (legacy)

18-analyte PFAS panel for finished drinking water by solid-phase extraction. Required for legacy comparability and many state-level monitoring programs that pre-date EPA 533.

LOD 1.4 ng/L · 5–7 days
03
LC-MS/MS

PFAS — EPA 1633 (multi-matrix)

40-analyte PFAS panel for non-potable matrices: wastewater, surface water, groundwater, soil, sediment, biosolids, fish tissue. The reference method for industrial discharge, NPDES permits, and Superfund work.

LOD ppt · 7–10 days
04
ICP-MS

Drinking-water metals (EPA 200.8)

Pb, Cu, As, Cr, Cd, Sb, Ni, Se, Tl, Be, Ba, Hg by ICP-MS. The Lead and Copper Rule (action 15 ppb Pb / 1.3 ppm Cu), Arsenic Rule (10 ppb), and primary MCL panel. Lead reported to sub-ppb LOD.

LOD ppb · 4–5 days
05
ICP-MS

Food / beverage metals — Closer to Zero

USP <232>/<233>-aligned panel for Pb, Cd, As (incl. inorganic arsenic speciation), and Hg. Tuned to FDA Closer to Zero action levels for baby food (10 ppb Pb), infant rice cereal (100 ppb iAs), juice (10 ppb Pb / iAs), and seafood mercury.

LOD < 5 ppb · 4–5 days
06
EPA 1631 / 1630

Mercury speciation (food / water)

Total mercury and methylmercury in water, sediment, and fish tissue. Isotope-dilution methodology required for fish-advisory work and FDA seafood mercury speciation.

LOD ppt · 5–7 days
07
LC-MS/MS

Mycotoxins (food)

Aflatoxins B1/B2/G1/G2, ochratoxin A, deoxynivalenol (DON), zearalenone, fumonisins, T-2 / HT-2. Multi-residue panel for grains, nuts, dried fruit, dairy, animal feed, and brewing inputs.

LOD 0.5–1 ppb · 5–6 days
08
LC-MS/MS

Adulterant / undeclared screen (food)

Melamine in dairy and protein matrices, nitrofuran metabolites in seafood, undeclared sweeteners, beta-agonists in meat. The FDA-warning-letter list — we run it before the importer or retailer asks.

LOD ppb · 5–7 days
02 · Drinking Water / Food & Bev 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.

Closer-to-Zero Metals
$145$240/ sample

ICP-MS panel for Pb, Cd, As (inorganic), Hg in food, juice, or beverage. The FDA / press / retailer headline panel for baby food, infant cereal, and protein matrices.

  • ICP-MS 4-metal panel
  • Inorganic As speciation
  • FDA action-level reporting
  • Public COA + accession #
Order
MOST POPULAR
Drinking-Water Compliance
$295/ sample

EPA 533 PFAS panel + EPA 200.8 metals. The combined COA municipal water systems and bottled-water producers need on file.

  • EPA 533 PFAS (25-analyte)
  • EPA 200.8 primary metals
  • Pb / As / Cr / Cd / Hg
  • MCL & action-level reporting
  • Public COA + accession #
Order
Food Retail Compliance
$389$620/ sample

Heavy metals + 60-analyte pesticides + mycotoxins for food and beverage SKUs. The COA Costco, HEB, Whole Foods, and Amazon Brand Registry actually want on file.

  • ICP-MS heavy metals (4-panel)
  • LC-MS/MS pesticides (60-analyte)
  • Mycotoxins (5-analyte)
  • Water activity + moisture
  • Certificate of Conformance
Order
À la carte assays
Add any of these to any panel
APRIL 2026
EPA 1633 PFAS (multi-matrix)
Wastewater / soil / sediment / biosolids
+$449
Inorganic arsenic speciation
Beyond total As; FDA juice / rice action levels
+$65
Methylmercury (seafood)
FDA seafood advisory speciation
+$75
Single-mycotoxin add
e.g. aflatoxin B1 standalone
+$49
Hexavalent chromium (Cr VI)
EPA 218.7 colorimetric
+$109
Melamine confirmation
Dairy / protein matrix
+$89
Single-PFAS confirmation
Targeted PFAS reanalysis
+$79
Field-blank evaluation
Co-shipped blank QC
+$45
Why we're cheaper
Same assays. Fewer markups.
EQUIVALENT PANEL: DRINKING WATER / FOOD & BEV STANDARD
Gold Standard
$295
Drinking-water compliance
Eurofins
$575
Same panel
Pace Analytical
$540
Same panel
SGS
$495
Same panel
03 · Common drinking-water & food failure modes

Where water and food COAs fail.

Six PFAS regulated under the 2024 NPDWR, FDA action levels for arsenic in baby food and lead in juice, recurring aflatoxin and pesticide hits in imported product. Risk concentrates predictably; testing scope follows.

PFOA + PFOS (drinking water)
EPA 533 · ng/L · MCL 4 ng/L
Very high risk
Now federally regulated under the 2024 NPDWR. Drinking-water failures concentrate downstream of historical fluorochemical manufacturing, AFFF firefighting-foam training sites, and military bases.
Inorganic Arsenic (infant cereal)
ICP-MS speciation · ppb · 100 ppb FDA
High risk
FDA infant-rice-cereal action level 100 ppb. Apple, pear, and grape juice action level 10 ppb. iAs is more toxic than total As; speciation needed for accurate exposure assessment.
Lead (juice / spices / cinnamon)
ICP-MS · ppb · spices / juice / baby food
High risk
Spice-and-cinnamon recall driver in 2024-25 baby-food puree market. ≤ 10 ppb is the FDA juice action floor; spices and powdered ingredients drive most failures.
Aflatoxin B1 (nuts / corn / dairy)
LC-MS/MS · ppb
High risk
Pre-harvest fungal toxin in peanuts, corn, tree nuts. Carries through into milk (M1) and pet food. EU action 2 ppb; FDA action 20 ppb total aflatoxins.
Cadmium (cocoa / shellfish)
ICP-MS · ppb · chocolate / kale / shellfish
Medium risk
Bioaccumulates from soil; impossible to spot-check at packaging. Cocoa, dark chocolate, and shellfish are the recurring failure matrices.
Chloramphenicol / nitrofurans
LC-MS/MS · ppb · shrimp / honey
Medium risk
Banned-substance imports from aquaculture and apiaries. FDA Import Alert 16-129 / 16-124 driver.
04 · Compliance

EPA SDWA, FDA Closer-to-Zero, USDA FSIS — on one COA.

Drinking water answers to EPA; food and beverage answer to FDA and USDA. We map every assay directly to the rule a utility, importer, or retail buyer will cite.

40 CFR 141
Safe Drinking Water Act — PFAS NPDWR (2024)

Final rule April 2024: federal MCLs of 4 ng/L for PFOA and PFOS, 10 ng/L for PFNA, PFHxS, HFPO-DA, plus a Hazard Index for the mixture. Public water systems must monitor by 2027 and reduce to compliance by 2029. We report against the MCL on every PFAS COA.

Lead & Copper Rule
EPA 200.8 — drinking-water metals

Pb action level 15 ppb (10 ppb proposed in LCRR / LCRI), Cu action level 1.3 ppm. Our EPA 200.8 panel reports Pb to sub-ppb LOD plus the full primary MCL metals list.

FDA Closer to Zero
Heavy metals in baby food, juice, infant cereal

FDA action levels for inorganic As (100 ppb infant rice cereal, 10 ppb juice), Pb (10 ppb juice, 20 ppb root vegetable baby food), Cd, and Hg under the Closer to Zero plan. Our ICP-MS panel reports against the published action floor.

21 CFR 109
Aflatoxin & food contaminant tolerances

FDA action level 20 ppb total aflatoxins for human food (0.5 ppb aflatoxin M1 in milk). EU action 2 ppb B1 / 4 ppb total. We report both bases on the COA so importer and domestic-buyer specs can both be met.

USDA FSIS
Veterinary-drug residues in animal-source food

FSIS National Residue Program targets antibiotics, beta-agonists, hormones, and nitrofurans in domestic meat and poultry. Our adulterant panel mirrors the FSIS multi-residue method and reports in a format aligned to FSIS Form 10,800-1.

EPA 1633
Multi-matrix PFAS method

EPA Method 1633 (final 2024) covers 40 PFAS analytes across wastewater, surface water, groundwater, soil, sediment, biosolids, and tissue. Required reference method for NPDES permits, Superfund work, and industrial-discharge characterization.

05 · Questions

Before you ship.

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

Both are EPA-approved drinking-water PFAS methods. EPA 533 uses isotope-dilution direct-injection LC-MS/MS, covers 25 short-and-long-chain analytes, and is what most utilities use today. EPA 537.1 uses SPE extraction, covers 18 longer-chain analytes, and is the historical reference method many state programs still require for comparability. We can run either or both on the same sample.

Pick the panel, ship the sample.

EPA-method PFAS, FDA Closer-to-Zero metals, USDA-aligned vet-drug residues — one Houston bench, transparent prices, regulator-formatted COA.

Submit drinking water / food & bev sample Verify a COA