RWA Lab Certifications
RWA Lab is always conscious of industry needs and maintains Massachusetts, Rhode Island and Connecticut State certifications as well as NELAC in 15 states (see the list below). Our primary focus since inception has been the analysis of drinking water. We continuously review and develop new methodologies to expand our expertise and provide you with the most comprehensive service possible.
RWA Lab is certified by the EPA for the national UCMR4 testing program, enabling us to provide services to every state. We are the only public water utility providing services outside our customer geography and one of only 14 commercial laboratories nationwide offering these services to utilities.
RWA Lab is NELAC Certified (#TN01819) in 15 states and individually certified in Massachusetts and Connecticut for most required drinking water quality testing parameters.
- Connecticut
- Massachusetts
- New Hampshire
- New York
- Pennsylvania
- Rhode Island
- Vermont
Regional Water Authority (RWA) Complete Analyte List
State-Registration or ID Number
CT-PH0411 • MA-M-CT004 • NH-2239 • NY-11867 • PA-68-05519 • RI-PH0411 • VT-11867
| Analyte (Units) | Method | States Certified | |||
| Aluminum (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Barium (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Beryllium (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Cadmium (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Calcium (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Chromium (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Copper (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Iron (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Magnesium (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Manganese (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Nickel (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Potassium (mg/) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Silver (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Sodium (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Zinc (mg/L) | EPA 200.7 | CT, MA, NH, NY, RI, VT | |||
| Antimony (mg/L) | EPA 200.9 | CT, MA, NH, NY, RI, VT | |||
| Arsenic (mg/L) | EPA 200.9 | CT, MA, NH, NY, RI, VT | |||
| Lead (mg/L) | EPA 200.9 | CT, MA, NH, NY, RI, VT | |||
| Selenium (mg/L) | EPA 200.9 | CT, MA, NH, NY, RI, VT | |||
| Thallium (mg/L) | EPA 200.9 | CT, MA, NH, NY, RI, VT | |||
| Calcium Hardness (mg/L) | SM 2340 B | CT, MA, NH, NY, RI, VT | |||
| Total Hardness (mg/L) | SM 2340 B | CT, RI | |||
| Alkalinity (mg/L) | SM 2320 B | CT, MA, NH, NY, RI, VT | |||
| Chloride (mg/L) | EPA 300.0 | CT, MA, NH, NY, RI, VT | |||
| Conductivity (μmhos/cm) | SM 2510 B | CT, MA, NH, NY, RI, VT | |||
| Fluoride (mg/L) | SM 4500-F | CT, MA, NH, NY, RI, VT | |||
| Nitrate (mg/L) | EPA 300.0 | CT, MA, NH, NY, RI, VT | |||
| Nitrite (mg/L) | EPA 300.0 | CT, MA, NH, NY, RI, VT | |||
| Sulfate (mg/L) | EPA 300.0 | CT, MA, NH, NY, RI, VT | |||
| pH | SM 4500-H+B | CT, MA, RI | |||
| TSS (Non-filt. Res.)(mg/L) | SM 2540D | CT, RI | |||
| TDS (mg/L) | SM 2540C | CT, MA, NH, NY, RI, VT | |||
| Total Solids (mg/L) | SM 2540B | CT, RI | |||
| Chlorate (μg/L) | EPA 300.1 | CT, MA, NH, NY, RI, VT | |||
| Chlorite (μg/L) | EPA 300.1 | CT, MA, NH, NY, RI, VT | |||
| Bromate (μg/L) | EPA 300.1 | CT, MA, NH, NY, RI, VT | |||
| Bromide (μg/L) | EPA 300.1 | CT, MA, NH, NY, RI, VT | |||
| Nitrite (mg/L) | EPA 300.0 | CT, MA, NH, NY, RI, VT | |||
| Ortho-Phosphate as P | EPA 300.0 | CT, MA, NH, NY, RI, VT | |||
| Free Residual Chlorine (mg/L) | SM 4500-Cl G | CT, MA, RI | |||
| Total Residual Chlorine (mg/L) | SM 4500-Cl G | CT, RI | |||
| DOC (mg/L) | SM 5310 B | CT, MA, NH, NY, RI, VT | |||
| TOC (mg/L) | SM 5310 B | CT, MA, NH, NY, RI, VT | |||
| DOC (mg/L) | SM 5310 C | CT, MA, NH, NY, RI, VT | |||
| TOC (mg/L) | SM 5310 C | CT, MA, NH, NY, RI, VT | |||
| Turbidity (NTU) | SM 2130 B | CT, MA, RI | |||
| Color (PC units) | SM 2120 B | CT, MA, NH, NY, RI, VT | |||
| Ammonia (mg/L) | SM4500-NH3 G | CT, RI | |||
| Total Phosphorus (mg/L) | SM4500-P | CT, RI | |||
| TKN (mg/L) | EPA 351.2 | CT, RI | |||
| UV 254 Absorbance (cm-1) | SM 5910 B | CT, NH, NY, RI, VT | |||
| Total Coliform (CFU/100mL) | SM 9222 B | CT, RI | |||
| Fecal Coliform (CFU/100mL) | SM 9222 B | CT, RI | |||
| E. coli (CFU/100mL) | SM 9222 B | CT, RI | |||
| Total Coliform (CFU/100mL) | SM 9223 B | CT, RI | |||
| Fecal Coliform (CFU/100mL) | SM 9223 B | CT, RI | |||
| E. coli (CFU/100mL) | SM 9223 B | CT, RI | |||
| Heterotrophic Plate Count (CFU/mL) | SM9215 B | CT, RI | |||
| Bromoacetic acid (μg/L) | SM 6251 B | CT, MA, NH, NY, PA, RI, VT | |||
| Bromochloroacetic acid (μg/L) | SM 6251 B | CT, MA, NH, NY, PA, RI, VT | |||
| Chloroacetic acid (μg/L) | SM 6251 B | CT, MA, NH, NY, PA, RI, VT | |||
| Dibromoacetic acid (μg/L) | SM 6251 B | CT, MA, NH, NY, PA, RI, VT | |||
| Dichloroacetic acid (μg/L) | SM 6251 B | CT, MA, NH, NY, PA, RI, VT | |||
| Trichloroacetic acid (μg/L) | SM 6251 B | CT, MA, NH, NY, PA, RI, VT | |||
| Bromoacetic acid (μg/L) | EPA 552.3 | CT, NH, NY, PA, RI, VT | |||
| Bromochloroacetic acid (μg/L) | EPA 552.3 | CT, NH, NY, PA, RI, VT | |||
| Chloroacetic acid (μg/L) | EPA 552.3 | CT, NH, NY, PA, RI, VT | |||
| Dibromoacetic acid (μg/L) | EPA 552.3 | CT, NH, NY, PA, RI, VT | |||
| Dichloroacetic acid (μg/L) | EPA 552.3 | CT, NH, NY, PA, RI, VT | |||
| Trichloroacetic acid (μg/L) | EPA 552.3 | CT, NH, NY, PA, RI, VT | |||
| Bromodichloromethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Bromoform (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Chlorodibromomethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Chloroform (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Benzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Carbon tetrachloride (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Chlorobenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,2-Dichlorobenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,4-Dichlorobenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,2-Dichloroethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,1-Dichloroethylene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| cis-1,2-Dichloroethylene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| trans-1,2-Dichloroethylene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,2-Dichloropropane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Ethylbenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Dichloromethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Styrene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Tetrachloroethylene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Toluene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,2,4-Trichlorobenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,1,1-Trichloroethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,1,2-Trichloroethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Trichloroethylene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Vinyl chloride (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Xylenes, total (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Bromobenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Bromochloromethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Bromomethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| tert-Butyl methyl ether (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| n-Butylbenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| sec-Butylbenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| tert-Butylbenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Chloroethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Chloromethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 2-Chlorotoluene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 4-Chlorotoluene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Dibromomethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,3-Dichlorobenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Dichlorodifluoromethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,1-Dichloroethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,3-Dichloropropane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 2,2-Dichloropropane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,1-Dichloropropene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| cis-1,3-Dichloropropene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| trans-1,3-Dichloropropene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Fluorotrichloromethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Hexachlorobutadiene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Isopropylbenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 4-Isopropyltoluene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Naphthalene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| n-Propylbenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,1,1,2-Tertachloroethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,1,2,2-Tetrachloroethane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,2,3-Trichlorobenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,2,3-Trichloropropane (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,2,4-Trimethylbenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 1,3,5-Trimethylbenzene (μg/L) | EPA 524.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Butachlor (μg/L) | EPA 525.2 | CT, NH, NY, PA, RI, VT | |||
| Metolachlor (μg/L) | EPA 525.2 | CT, NH, NY, PA, RI, VT | |||
| Metribuzin (μg/L) | EPA 525.2 | CT, NH, NY, PA, RI, VT | |||
| Propachlor (μg/L) | EPA 525.2 | CT, NH, NY, PA, RI, VT | |||
| Benzo(a)pyrene (μg/L) | EPA 525.2 | CT, NH, NY, PA, RI, VT | |||
| bis(2-Ethylhexyl)adipate (μg/L) | EPA 525.2 | CT, MA, NH, NY, PA, RI, VT | |||
| bis(2-Ethylhexyl)phthalate (μg/L) | EPA 525.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Chlordane (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Toxaphene (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Aldrin (μg/L) | EPA 505.2 | CT, NH, NY, PA, RI, VT | |||
| Dieldrin (μg/L) | EPA 505.2 | CT, NH, NY, PA, RI, VT | |||
| Endrin (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Heptachlor (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Heptachlor epoxide (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Hexachlorobenzene (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Hexachlorocyclopentadiene (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Lindane (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Methoxychlor (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Alachlor (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Atrazine (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| Simazine (μg/L) | EPA 505.2 | CT, MA, NH, NY, PA, RI, VT | |||
| PCB Aroclor Identity | EPA 505.2 | CT, NH, NY, PA, RI, VT | |||
| Dibromochloropropane (μg/L) | EPA 504.1 | CT, MA, NH, NY, PA, RI, VT | |||
| Ethylene Dibromide (μg/L) | EPA 504.1 | CT, MA, NH, NY, PA, RI, VT | |||
| 2,4-D (μg/L) | EPA 515.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Dalapon (μg/L) | EPA 515.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Dicamba (μg/L) | EPA 515.3 | CT, NH, NY, PA, RI, VT | |||
| Dinoseb (μg/L) | EPA 515.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Pentachlorophenol (μg/L) | EPA 515.3 | CT, MA, NH, NY, PA, RI, VT | |||
| Picloram (μg/L) | EPA 515.3 | CT, MA, NH, NY, PA, RI, VT | |||
| 2,4,5-TP (μg/L) | EPA 515.3 | CT, MA, NH, NY, PA, RI, VT | |||
| NETFOSAA | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| NMeFOSAA | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluorobutane sulfonic acid (PFBS) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluorodecanoic acid (PFDA) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluorododecanoic acid (PFDOA) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluoroheptanoic acid (PFHPA) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluorohexane sulfonic acid (PFHxS) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluorohexanoic acid (PFHxA) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluorononanoic acid (PFNA) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluorooctane sulfonic acid (PFOS) | EPA 537 | CT, MA, NH, NY, PA, RI, VT | |||
| Perfluorooctanoic acid (PFOA) | EPA 537 | CT, MA, NH, NY, PA, RI, VT | |||
| Perfluorotetradecanoic acid (PFTeDA) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluorotridecanoic acid (PFTrDA) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| Perfluoroundecanoic acid (PFUnDA) | EPA 537 | CT, MA, NH, PA, RI, VT | |||
| 11-CL-PF3OUdS | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| DONA | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| 9-CL-PF3ONS | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| HFPO-DA | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| NEtFOSAA | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| NMeFOSAA | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluorobutane sulfonic acid (PFBS) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluorodecanoic acid (PFDA) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluorododecanoic acid (PFDOA) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluoroheptanoic acid (PFHPA) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluorohexane sulfonic acid (PFHxS) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluorohexanoic acid (PFHxA) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluorononanoic acid (PFNA) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluorooctane sulfonic acid (PFOS) | EPA 537.1 | CT, MA, NH, NY, PA, RI, VT | |||
| Perfluorooctanoic acid (PFOA) | EPA 537.1 | CT, MA, NH, NY, PA, RI, VT | |||
| Perfluorotetradecanoic acid (PFTeDA) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluorotridecanoic acid (PFTrDA) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Perfluoroundecanoic acid (PFUnDA) | EPA 537.1 | CT, MA, NH, PA, RI, VT | |||
| Non-certified Analytes Tested: | |||||
| MIB/Geosmin | SM 6040 E | N/A | |||