Surface water sample and replicate report form – E. coli

 

To be filled out at time of collection:

 

Station ID:        _________________________                      Sampled By: _______________________

 

Date:  ____/____/___              Time:  ___________                NAWQA 4 letter SUID: ______________

          MM / DD / YY                              (military)

 

 

To be filled out by laboratory analyst:

Analyzed by (initials):  _________________                Time in 35 °C:  ________  44.5°C:  ________

Medium lot or batch ID: ________________               Time out:  ____________

Filter lot number:           __________________            Membrane pore size:  0.45 mm

Read by: ____________                                              Mod. mTEC positive colony:  red or magenta colony                           

Colony counts:

Suggested sample volumes: 100, 30, 10, 3, 1, 0.3 (30mL of 10-2 dilution), and 0.1(10mL of 10-2 dilution)

 

Sample size

(volume - mL)

E. coli  Sample

     A              B

E. coli  Replicate

      C             D  

100 mL

 

 

 

 

30 mL

 

 

 

 

10 mL

 

 

 

 

3 mL

 

 

 

 

1 mL

 

 

 

 

0.3 mL

(30 mL of a 1 to 100 dilution)

 

 

 

 

 

0.1  mL

(10 mL of a 1 to 100 dilution)

 

 

 

 

 

 

 

 

 

Filter Blank

(before plating series)

 

 

 

 

RESULTS

E. coli colonies/100 mL

 

 

 

 

 

                    COMMENTS:

NWIS parameter code for E. coli on modified mTEC, 90902