A. Except as otherwise provided in Sections 20.6.2.2000 through 20.6.2.2201 NMAC, no person shall cause or allow effluent to discharge to a watercourse if the effluent as indicated by:

1. (1) any two consecutive daily composite samples;
2. (2) more than one daily composite sample in any thirty-day period (in which less than ten (10) daily composite samples are examined);
3. (3) more than ten percent (10%) of the daily composite samples in any thirty-day period (in which ten (10) or more daily composite samples are examined); or

4. (4) a grab sample collected during flow from an intermittent or infrequent discharge

   1. (a) Bio-chemical Oxygen Demand (BOD) Less than 30 mg/l
   2. (b) Chemical Oxygen Demand (COD) Less than 125 mg/l
   3. (c) Settleable Solids Less than 0.5 mg/l
   4. (d) Fecal Coliform Bacteria Less than 500 organisms per 100 ml
   5. (e) pH Between 6.6 and 8.6

   does not conform to the following:

D. Samples shall be examined in accordance with the most current edition of Standard Methods for the Examination of Water and Wastewater published by the American Public Health Association or the most current edition of Methods for Chemical Analysis of Water and Wastes published by the Environmental Protection Agency, where applicable.

[4-20-68, 3-14-71, 10-8-71, 8-13-76, 2-20-81, 12-1-95; 20.6.2.2101 NMAC - Rn, 20 NMAC 6.2.II.2101, 1-15-01]