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/4°C
200
6 hours
Color
EPA 110.3
P, G/4°C
100
48 hours
Cyanide (CN)
EPA 335.2
P, G/4°C, NaOH to pH > 12
500
14 days
Fluoride, Total
Standard Method 413A
P/4°C
500
28 days
Fluoride, Electrode
EPA 340.2
P/4°C
200
28 days
Fluoride, (SPADNS)
EPA 340.1
P/4°C
500
28 days
Nitrogen, (NO3)
EPA 352.1/353.2
P, G/4°C
100
48 hours
Nitrogen, (NO2)
EPA 354.1/353.2
P, G/4°C
100
48 hours
Odor
EPA 140.1
G/4°C
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/4°C
100
28 Days
Surfactants
EPA 425.1
P, G/4°C
250
48 hours
TDS
EPA 160.1
P, G/4°C
250
7 days
Turbidity
EPA 180.1
P, G/4°C
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.