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Method Detection Limits (MDL) and Method Reporting Limits (MRL)

Table of Contents

200.8

Analysis: EPA 200.8

Matrix: Water

1 µg/L = 0.001 mg/L

analytes units mdl mrl update date
Aluminum µg/L 0.989 10 Update 7/14/17
Antimony µg/L 0.0136 0.5 Update 7/14/17
Arsenic µg/L 0.0402 0.5 Update 7/14/17
Barium µg/L 0.0239 0.5 Update 7/14/17
Beryllium µg/L 0.529 1.5 Update 3/28/19
Boron µg/L 0.831 25 Update 7/14/17
Cadmium µg/L 0.00474 0.5 Update 7/14/17
Chromium µg/L 0.0221 0.5 Update 7/14/17
Cobalt µg/L 0.002 0.5 Added 3/28/19
Copper µg/L 0.00507 0.5 Update 7/14/17
Iron µg/L 0.381 10 Update 7/14/17
Lead µg/L 0.0031 0.5 Update 7/14/17
Lithium µg/L 0.005 0.5 Added 3/28/19
Manganese µg/L 0.0132 0.5 Update 7/14/17
Molybdenum µg/L 0.00669 0.5 Update 7/14/17
Nickel µg/L 0.0237 0.5 Update 7/14/17
Selenium µg/L 0.00669 0.5 Update 7/14/17
Silver µg/L 0.00212 0.5 Update 7/14/17
Thallium µg/L 0.00416 0.5 Update 7/14/17
Tin µg/L 0.031 0.5 Added 3/28/19
Uranium µg/L 0.0018 0.5 Added 3/28/19
Vanadium µg/L 0.00393 0.5 Update 7/14/17
Zinc µg/L 0.27 1 Update 7/14/17

3015-6020

Extraction: EPA 3015A

Analysis: EPA 6020A

Matrix: Water

1 µg/L = 0.001 mg/L

analytes units mdl mrl update date
Aluminum µg/L 24.7 50 Update 7/14/17
Antimony µg/L 0.0308 0.5 Update 7/14/17
Arsenic µg/L 0.0441 0.5 Update 7/14/17
Barium µg/L 0.779 5 Update 7/14/17
Beryllium µg/L 0.974 5 Update 7/14/17
Cadmium µg/L 0.0689 0.5 Update 7/15/19
Calcium µg/L 10.1 25.0 Confirmed 7/15/19
Chromium µg/L 0.0502 0.5 Update 7/14/17
Cobalt µg/L 0.0201 0.5 Update 7/14/17
Copper µg/L 0.5 1.0 Update 7/15/19
Iron µg/L 28.5 50 Update 7/14/17
Lead µg/L 0.5 1.0 Update 7/15/19
Lithium µg/L 1.67 10 Update 7/14/17
Magnesium µg/L 15.9 25.0 Update 7/15/19
Manganese µg/L 0.361 0.5 Update 7/14/17
Molybdenum µg/L 0.014 0.5 Update 7/14/17
Nickel µg/L 0.0534 0.5 Update 7/14/17
Potassium µg/L 4.54 25.0 Confirmed 7/15/19
Phosphorus µg/L 2.75 10 Update 7/14/17
Selenium µg/L 0.0460 0.5 Update 7/15/19
Silicon µg/L 20.6 100 Update 7/14/17
Silver µg/L 0.12 0.5 Update 7/14/17
Sodium µg/L 15.1 25.0 Update 7/15/19
Thallium µg/L 0.0201 0.5 Update 7/14/17
Tin µg/L 0.11 0.5 Update 7/14/17
Vanadium µg/L 0.0771 0.5 Update 7/14/17
Zinc µg/L 1.06 10.0 Update 7/15/19

3051-6020

Extraction: EPA 3051A

Analysis: EPA 6020A

Matrices: Biota, Sediment, Soil

mg/kg = µg/g = ppm

analytes units mdl mrl update date
Aluminum mg/kg 1.04 5 Confirmed 3/28/19
Antimony mg/kg 0.00875 0.05 Update 3/28/19
Arsenic mg/kg 0.0111 0.05 Update 3/12/19
Barium mg/kg 0.0258 0.05 Update 7/14/17
Beryllium mg/kg 0.0388 0.05 Update 7/14/17
Cadmium mg/kg 0.00585 0.05 Update 3/12/19
Chromium mg/kg 0.00682 0.05 Update 7/14/17
Cobalt mg/kg 0.004281 0.05 Update 7/14/17
Copper mg/kg 0.0171 0.05 Confirmed 3/12/19
Iron mg/kg 1.86 5 Confirmed 3/28/19
Lead mg/kg 0.00571 0.05 Confirmed 3/12/19
Lithium mg/kg 0.0752 0.5 Update 7/14/17
Manganese mg/kg 0.0453 0.1 Confirmed 3/28/19
Molybdenum mg/kg 0.00465 0.05 Update 7/14/17
Nickel mg/kg 0.0623 0.1 Update 3/28/19
Selenium mg/kg 0.00710 0.05 Update 3/12/19
Silver mg/kg 0.0338 0.05 Update 3/28/19
Thallium mg/kg 0.00166 0.05 Update 7/14/17
Tin mg/kg 0.0195 0.05 Update 3/28/19
Vanadium mg/kg 0.00486 0.05 Update 7/14/17
Zinc mg/kg 0.145 0.5 Confirmed 3/28/19

domoic acid (Amnesic Shellfish Toxin (AST))

Analysis: lc/ms/ms

Matrix: Shellfish

mg/kg = µg/g = ppm

analytes units mdl mrl update date
Domoic Acid mg/kg 0.0025 0.005 Changed 8/8/17

Analysis: Quilliam et al. 1991 NSSP 2015 (HPLC-UV)

Matrix: Shellfish

mg/kg = µg/g = ppm

analytes units mdl mrl update date
Domoic Acid µg/g 0.625 1.25 Changed 5/17/19

inorganic arsenic

Analysis: HPLC/ICP/MS

Matrices: Biota, Shellfish

ppm

analytes units mdl mrl update date
Inorganic Arsenic ppm 0.0374 0.0748 Changed 3/31/20

mercury

Analysis: EPA 7473

Matrices: Water, Biota, Sediment, Soil

mg/kg = µg/g = ppm

1 µg/L = 0.001 mg/L

analytes units mdl mrl update date
Mercury mg/kg 0.0048 0.01 Confirmed 1/22/20
Mercury mg/L 0.0048 0.01 Confirmed 1/22/20

Analysis: HPLC/ICP/MS

Matrix: Biota

mg/kg = µg/g = ppm

analytes units mdl mrl update date
Methylmercury mg/kg 0.00901 0.0150 Changed 4/27/20

paralytic shellfish toxins (psts)

Analysis: AOAC 2011.02

Matrix: Shellfish

µg/100g

analytes units mdl mrl update date
C1 µg/100g 0.0500 0.105 Changed 11/22/19
C2 µg/100g 0.241 0.505 Changed 11/22/19
dcGTX2 µg/100g 0.680 1.36 Changed 11/22/19
dcGTX3 µg/100g 0.377 0.754 Changed 11/22/19
dcSTX µg/100g 1.28 2.65 Changed 11/22/19
GTX1 µg/100g 3.31 10.0 Changed 11/22/19
GTX2 µg/100g 1.50 3.08 Changed 11/22/19
GTX3 µg/100g 1.06 2.13 Changed 11/22/19
GTX4 µg/100g 1.21 2.42 Changed 11/22/19
GTX5 µg/100g 0.268 0.569 Changed 11/22/19
NEO µg/100g 3.85 9.32 Changed 11/22/19
STX µg/100g 3.33 10.2 Changed 11/22/19

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