Laboratory Services

MASI has a combination of resources, technical expertise, and testing ability, to support large and small clients. We can test a variety of matrices, including but not limited to, drinking water, wastewater, hazardous waste, sludge, soil, and more.

Microbiology Services

Our Microbiology Department can accommodate all your coliform testing needs whether it be qualitative or quantitative. We offer fast, accurate testing by various OEPA certified methods, including MUG, MPN, or MF. In case of emergencies, we are ready day or night, 365 days a year, to help you with your coliform testing.

Learn more about OEPA's Water Regulations

MASI's Water Testing Capabilities:

Drinking Water Capabilities

Test	Method	Bottle	Preservative	Hold Time	Turn Time	Instructions
Alkalinity, Stab	SM 2320	250ml Plastic	Non Preserved	14 days	7-10 business days
Alkalinity, Total	SM2320 B	250ml Plastic	Non Preserved	14 days	7-10 business days
Asbestos	EPA 100.1	2-quart cubes	Non preserved	48 hours	Sub contracted / 30 days
Chloride	SM4500 Cl B	250ml Plastic	Non Preserved	28 days	7-10 business days
Chlorine, Total	SM4500 Cl B	250ml Plastic	Non Preserved	ASAP	7-10 business days
Conductivity	SM 2510 B	250ml plastic	Non Preserved	28 days	7-10 business days
Fluoride	SM 4500 F C	250ml plastic	Non preserved	7 days	7-10 business days
Nitrate (NO3)	EPA 353.2	250ml plastic	Non preserved or Sulfuric Acid	48 hours / 28 days	7-10 business days
Nitrite (NO2)	EPA 353.2	250ml plastic	Non preserved	48 hours	7-10 business days
Iron, Susp	EPA 200.7	250ml plastic	Non preserved	48 hours	7-10 business days
Manganese, Susp	EPA 200.7	250ml plastic	Non preserved	48 hours	7-10 business days
Copper Rule	EPA 200.7	1L plastic	Non preserved or Nitric Acid	14 days / 6 mons	7-10 business days	Copper Rule Sampling Instructions
Lead Rule	SM 3113 B	1L plastic	Non preserved or Nitric Acid	14 days / 6 mons	7-10 business days	Lead Rule Sampling Instructions
pH	SM 4500 H+	250ml plastic	Non preserved	ASAP	7-10 business days
Phosphate, Ortho	SM 4500 P E	250ml Plastic	Non Preserved	48 hours	7-10 business days
Turbidity	SM 2130 B	250ml plastic	Non preserved	48 hours	7-10 business days
Residue, Total Filtered	SM 2540 C	250ml Plastic	Non Preserved	7 days	7-10 business days
Sulfate, SO4	SM 4500 SO4 E	250ml plastic	Non preserved	28 days	7-10 business days
Total Alpha	EP EERF 00-02	4L Cube	Non Preserved	5 days	Sub contracted / 30 days
Total Beta	EPA 900.0	4L Cube	Non Preserved	5 days	Sub contracted / 30 days
Radium 228	EPA 904.0	4L Cube	Non Preserved	5 days	Sub contracted / 30 days
Phosphate, Total (PO4)	SM 4500 P E	250ml plastic	Sulfuric Acid	28 days	7-10 business days
Phosphorus, Total (TP)	SM 4500 P E	250ml plastic	Sulfuric Acid	28 days	7-10 business days
Cyanide	OIA-1677DW	250ml plastic	Ascorbic Acid + NaOH	14 days	7-10 business days
TTHM	EPA 524.2	3-40ml vials	Ascorbic Acid + HCl	14 days	10 business days	TTHM Drinking Water Sampling Instructions
HAA5	EPA 552.3	2-60ml vials	Ammonium Chloride	14 days	10 business days	HAA5 Drinking Water Sampling Instructions
TOC	SM 5310C	3-40ml vials	Phosphoric Acid	28 days	10 business days
VOC	EPA 524.2	3-40ml vials	Ascorbic Acid + HCl	14 days	10 business days	VOC Drinking Water Sampling Instructions
Metals**	Methods ***	250ml plastic	Nitric Acid or Non Preserved	6 mos / 14 days	7-10 business days
Hardness	SM 2340 B	250ml plastic	Nitric Acid or Non Preserved	6 mos / 14 days	7-10 business days

**Including but not limited to Sb, As, Ba, Be, Cd, Cr, Ni, Se, Tl, Fe, Mn, Ca, Cu, Mg, Mo, Ag, Na, Pb, Zn
*** Methods: EPA 200.7 / EPA 200.9 / SM 3113 B

SOC Parameters						Instructions
Group 1	EPA 525.2	1L Amber glass	Sodium Sulfite + HCl	14 days	10-14 business days	Group 1 SOC 525.2 Semivolatile Pesticides Sampling Instructions
Group 2	EPA 515.3	250ml Amber glass	Sodium Thiosulfate	14 days	10-14 business days	Group 2 SOC 515.3 Herbicides Sampling Instructions
	EPA 531.1	3-40ml vials	Monochloroacetic Acid	28 days	10-14 business days	Group 2 SOC 531.1 Carbamates Sampling Instructions
Group 3	EPA 508	1L Amber glass	Sodium Thiosulfate	7 days	10-14 business days	Group 3 SOC 508 Pesticides Sampling Instructions
	EPA 547	3-40ml vials	Sodium Thiosulfate	14 days	10-14 business days	Group 3 SOC 547 Glyphosate Sampling Instructions
	EPA 549.1	1L Amber plastic	Sodium Thiosulfate + H2SO4	7 days	10-14 business days
Group 4	EPA 525.2	1L Amber glass	Sodium Sulfite + HCl	14 days	10-14 business days	Group 4 SOC 525.2 Semivolatile Pesticides Sampling Instructions
	EPA 548.1	250ml Amber glass	Sodium Thiosulfate	7 days	10-14 business days	Group 4 SOC 548.1 Endothall Sampling Instructions

Waste Water Capabilities

Test	Method	Bottle	Preservative	Hold Time	Special Requirements	Instructions
Alkalinity, Phen	SM 2320	250ml Plastic	Non Preserved	14 days
Alkalinity, Stab	SM 2330	250ml Plastic	Non Preserved	14 days
Alkalinity, Total	SM 2320 B	250ml Plastic	Non Preserved	14 days
BOD, 5 Day	SM 5210 B	250ml Plastic	Non Preserved	48 hours
CBOD, 5 Day	SM 5210 B	250ml Plastic	Non Preserved	48 hours
Chloride	SM 4500Cl B	250ml Plastic	Non Preserved	28 days
Chlorine, Free	SM 4500Cl G	250ml Plastic	Non Preserved	ASAP
Chlorine, Residual	SM 4500Cl G	250ml Plastic	Non Preserved	ASAP
Chlorine, Total	SM 4500Cl G	250ml Plastic	Non Preserved	ASAP
COD	SM 5220 D	250ml Plastic	Sulfuric Acid	28 days
Conductivity	SM 2510 B	250ml Plastic	Non Preserved	28 days
Cyanide	OIA 1677-09	250ml Plastic	Ascorbic Acid / NaOH at Receipt	14 days
Dissolved Oxygen	SM 4500 O G	250ml Plastic	Non Preserved	ASAP
E-Coli	SM 9223 B - 18 hr	100ml Sterile	Sodium Thiosulfate	6+2 hours	MASI Container
Fecal Coliform	SM 9223 B - 18 hr	100ml Sterile	Sodium Thiosulfate	6+2 hours	MASI Container
Fecal Strep	SM 9230 C	100ml Sterile	Sodium Thiosulfate	6+2 hours	MASI Container
Flash Point, Closed	SM 1010 / 1030	Amber Qt	Non Preserved	N/A
Flash Point, Open	SM 1010 / 1030	Amber Qt	Non Preserved	N/A
Hardness	SM 2340 B	250ml Plastic	Nitric Acid or Non preserved	6 mos /14 days
MBAS	SM 5540 C	250ml Plastic	Non Preserved	48 hours
Nitrate (NO3)	EPA 353.2	250ml Plastic	Non Preserved or Sulfuric Acid	48 hours / 28 days
Nitrite (NO2)	EPA 353.2	250ml Plastic	Non Preserved	48 hours
Nitrate+Nitrite	EPA 353.2	250ml Plastic	Non preserved or Sulfuric Acid	48 hours / 28 days
Nitrogen Ammonia	EPA 350.1	250ml Plastic	Sulfuric Acid	28 days
Odor	SM 2150 B	Glass Odor Btl	Non Preserved	ASAP
pH	SM 4500H+	250ml Plastic	Non Preserved	ASAP
Phenol	EPA 420.1	Amber Qt	Sulfuric Acid	28 days
Phosphate, Ortho	SM 4500 P-E	250ml Plastic	Non Preserved	48 hours
Phosphate, Total (PO4)	SM 4500 P-E	250ml Plastic	Sulfuric Acid	28 days
Phosphorus, Total (TP)	SM 4500 P-E	250ml Plastic	Sulfuric Acid	28 days
Solids, Dissolved	SM 2540C	250ml Plastic	Non Preserved	7 days
Solids, Non-Volatile	SM 2540 E	250ml Plastic	Non Preserved	7 days
Solids, Percent	SM 2540 B	250ml Plastic	Non Preserved	7 days
Solids, Suspended	SM 2540-D	250ml Plastic	Non Preserved	7 days
Solids, Total	SM 2540 B	250ml Plastic	Non Preserved	7 days
Solids, Volatile	SM 2540 E	250ml Plastic	Non Preserved	7 days
Solids, Volatile Susp	SM 2540 E	250ml Plastic	Non Preserved	7 days
Specific Gravity	SM 2710 F	250ml Plastic	Non Preserved	7 days
Specific Oxygen Uptake	SM 2710	250ml Plastic	Non Preserved	7 days
TCLP	EPA 1311	250 g Sample	Non Preserved	N/A
THM	EPA 8260/624	3-40ml vials	Sodium Thiosulfate	7 days	Trip blanks/No Headspace
TKN	EPA 351.2	250ml Plastic	Sulfuric Acid	28 days
TOC	SM 5310 C	3-40ml vials	Phosphoric Acid	28 days
TON-N	EPA 350.1+351.2	250ml Plastic	Sulfuric Acid	28 days
TTO	EPA 608/624/625	1L glass/3-40ml vial	Sodium Thiosulfate	7 days	Trip blanks/No Headspace for 624
Turbidity	SM 2130 B	250ml Plastic	Non Preserved	48 hours
VOC	EPA 8260/624	3-40ml vials	Sodium Thiosulfate	7 days	Trip blanks/No Headspace
O&G Hexane	EPA 1664 A / B	1L Amber	Sulfuric Acid	28 days
Low Level Hg	EPA 1631 E	Special Kit	Non Preserved	28 days		Low-Level Hg Sampling Instructions
Mercury	EPA 245.1	250ml Plastic	Nitric Acid	28 days
Metals **	Methods ***	250ml Plastic	Nitric Acid or Non preserved	6 mos / 14 days
Chrome Hexavalent	SM 3500 Cr B	250ml Plastic	Non Preserved	24 hours
Iron Susp	EPA 200.7	250ml Plastic	Non Preserved	48 hours
Mn Susp	EPA 200.7	250ml Plastic	Non Preserved	48 hours
Pesticide	EPA 608/8081	1L Amber	Sodium Thiosulfate	7 days
Herbicide	EPA 8151	1L Amber	Sodium Thiosulfate	7 days
TPH GRO	EPA 8015 B	3-40ml vials	Sodium Thiosulfate	7 days
TPH DRO	EPA 8015 B	1L Amber	Sodium Thiosulfate	7 days
PCB	EPA 8082	1L Amber	Sodium Thiosulfate	7 days

** Including but not limited to Al, Sb, As, Ba, Be, Cd, Ca, Cr, Cu, Fe, Pb, Mg, Hg, Mo, Ni, K, Se, Ag, Na, Tl, Zn
*** Methods: EPA 200.7 / EPA 200.9

NPDES/Microbiological Capabilities

Test	Method	Bottle	Preservative	Hold Time	Turn Time	Instructions
Total Coliform MMO-MUG	SM 9223-18	100ml Sterile	Sodium Thiosulfate	30 hours	36 hours	Total Coliform Sampling Instructions
E-Coli MMO-MUG	SM9223 B	100ml Sterile	Sodium Thiosulfate	30 hours	36 hours
Total Coliform Quanti Tray	SM9223 B-QT	100ml Sterile	Sodium Thiosulfate	30 hours	36 hours	Total Coliform Sampling Instructions
Total Coliform Membrane filter	SM 9222 B G	100ml Sterile	Sodium Thiosulfate	30 hours	96 hours	Total Coliform Sampling Instructions
Fecal Coliform Membrane filter	SM 9222 D	100ml Sterile	Sodium Thiosulfate	30 hours	36 hours
E.Coli Membrane filter	EPA 1603	100ml Sterile	Sodium Thiosulfate	30 hours	96 hours
Total Plate Count	SM 9215 B	100ml Sterile	Sodium Thiosulfate	24 hours	96 hours

NPDES/Microbiological Capabilities/ Harmful Algal Blooms (HABs)

Test	Method	Bottle	Preservative	Hold Time	Turn Time	Instructions
Cyanobacteria qPCR screening (Saxitoxins & Microcystins)	EPA-DES 705.0	250ml amber glass	Unpreserved / Ice immediately	48 hours	5-7 business days	Cyanobacteria Screening Instructions
Total Microcystins	EPA-DES 701.0 A	125ml amber glass	Sodium Thiosulfate	5 days	5-7 business days	Total Microcystins Instructions

MASI LABS

Business Hours

Monday: 8 AM – 3 PM
Tuesday Thru Friday: 8 AM – 5 PM
Emergency Services Available 24/7

Address

7940 Memorial Drive,
Plain City, Ohio 43064

11405 Century Circle West,
Cincinnati, Ohio 45246