Drinking Water and Source Water Analysis (SDWA)
SDWA
Parameter
| Typical Method(s)
| Sample Container/ Preservative
| Preferred Volume (mL)
| EPA Holding Time
|
|---|
Bacteria, Total Coliform
| Standard Method 909A
| P, G/4C
| 200
| 6 hours
|
Color
| EPA 110.3
| P, G/4C
| 100
| 48 hours
|
Cyanide (CN)
| EPA 335.2
| P, G/4C, NaOH to pH 12
| 500
| 14 days
|
Fluoride, Total
| Standard Method 413A
| P/4C
| 500
| 28 days
|
Fluoride, Electrode
| EPA 340.2
| P/4C
| 200
| 28 days
|
Fluoride, (SPADNS)
| EPA 340.1
| P/4C
| 500
| 28 days
|
Nitrogen, (NO3)
| EPA 352.1/353.2
| P, G/4C
| 100
| 48 hours
|
Nitrogen, (NO2)
| EPA 354.1/353.2
| P, G/4C
| 100
| 48 hours
|
Odor
| EPA 140.1
| G/4C
| 1000
| 24 hours
|
pH
| EPA 150.1
| P, G
| 100
| Immediately
|
SDWA Metals
| EPA 200/7000
| P, G/HNO3 to pH 2
| 500
| 6 Months/ Hg 28 Days
|
Sulfate (SO4)
| EPA 375.4/300.0
| P, G/4C
| 100
| 28 Days
|
Surfactants
| EPA 425.1
| P, G/4C
| 250
| 48 hours
|
TDS
| EPA 160.1
| P, G/4C
| 250
| 7 days
|
Turbidity
| EPA 180.1
| P, G/4C
| 100
| 48 hours
|
Guide Notes & Abbreviations
- Sample Containers:
- G = Glass
- A = Amber
- P = Plastic, polyethylene bottle with a polypropylene cap
- GA = Glass amber bottle with a Teflon lined cap
- VOA = Volatile organic 40 ml vial with a Teflon lined cap
- Preservatives:
- HCl = Hydrochloride Acid
- H2SO4 = Sulfuric Acid
- NHO3 = Nitric Acid
- NaOH = Sodium Hydroxide
- Zn + Acetate = Zinc + Acetate
* Preserve soil samples to 4 C; contact laboratory for proper sample container.
- Regulations:
- SDWA = Safe Drinking Water Act
- NPDES = National Pollutant Discharge Elimination System
- RCRA = Resource Conservation Recovery Act
- Note:
- The methods shown are those commonly employed in performing environmental analyses. It is not intended to be inclusive of all possible EPA analytical methods or to indicate that Katahdin Analytical Services routinely provides the methods or parameters shown. The information provide is current as of March 1996.
