South Dakota Administrative Rules › Title 74 - Department of Environment And Natural Resources › Article 74:21 - Water system operators › Chapter 74:21:02 - Certification of water and wastewater operators › Section 74:21:02:60 - Point system classification of wastewater treatment plants

Current through Register Vol. 51, page 10, July 15, 2024
For the purpose of classification of wastewater treatment plants, the
	 plants shall be awarded points based on the criteria in this section. The
	 combined total of subdivisions (1) and (2) may not exceed 20 points. The points
	 and criteria are as follows:
(1) One
  point per 10,000 population equivalent or part thereof served on a peak
  day;
(2) One point per 1,000,000
  gallons per day or part thereof for the designed average daily flow or peak
  month flow, whichever is larger;
(3) Six points if the wastewater is or may be
  discharged into surface waters classified for either domestic water supplies or
  cold water permanent fish life propagation, or both, in accordance with the
  rules in article 74:51;
(4) Five
  points if the wastewater is or may be discharged into surface waters classified
  for cold water marginal or warm water permanent fish life propagation in
  accordance with the rules in article 74:51;
(5) Four points if the wastewater is or may
  be discharged into surface waters classified for warm water semi-permanent fish
  life propagation in accordance with the rules in article 74:51;
(6) Three points if the wastewater is or may
  be discharged into surface waters classified for warm water marginal fish life
  propagation in accordance with the rules in article 74:51;
(7) Two points if the wastewater is or may be
  discharged into surface waters classified for fish and wildlife propagation,
  recreation, and stock watering in accordance with the rules in article
  74:51;
(8) Two points if the
  wastewater effluent is discharged to the land for final disposal or held in
  ponds for evaporation;
(9) Four
  points if the wastewater effluent is disposed of below the surface of the
  ground;
(10) Two points if the raw
  waste flow has recurring deviations or excessive variations of 100 to 200
  percent in average daily flow;
(11)
  Three points if the raw waste flow has recurring deviations or excessive
  variations of more than 200 percent in average daily flow;
(12) Two points if the raw waste flow
  contains toxic wastes which cause a problem at the plant;
(13) Two points if the raw waste flow has
  recurring deviations or excessive variations of 100 to 200 percent in average
  daily five-day biochemical oxygen demand (BOD) concentration;
(14) Three points if the raw waste flow has
  recurring deviations or excessive deviations of more than 200 percent in
  average daily five-day BOD concentrations;
(15) One point if the peak day raw waste
  suspended solids (SS) concentration is greater than two times the SS
  concentration on an average day for the year;
(16) Three points if either wastewater
  screening or comminution, or both, is provided;
(17) Three points if grit removal is
  provided;
(18) Three points if
  pumping of the main flow at the plant is provided;
(19) Five points if one or more primary
  clarifiers are provided as primary treatment;
(20) Five points if combined primary
  sedimentation/digestion is provided as primary treatment;
(21) Four points if chemical addition, except
  chlorination and enzymes, is provided as primary treatment;
(22) Ten points if trickling filtration with
  one or more secondary clarifiers is provided as secondary treatment;
(23) Fifteen points if activated sludge with
  one or more secondary clarifiers, including extended aeration and oxidation
  ditches, is provided as secondary treatment;
(24) Five points if stabilization ponds
  without aeration are provided as secondary treatment;
(25) Eight points if an aerated lagoon is
  provided as secondary treatment;
(26) Two points if a polishing pond is
  provided as advanced waste treatment;
(27) Fifteen points if chemical/physical
  treatment is provided as advanced waste treatment without secondary
  treatment;
(28) Ten points if
  chemical/physical treatment is provided as advanced waste treatment following
  secondary treatment;
(29) Twelve
  points if biological or chemical/biological treatment is provided as advanced
  waste treatment;
(30) Ten points if
  ion exchange is provided as advanced waste treatment;
(31) Fifteen points if reverse osmosis or
  electrodialysis is provided as advanced waste treatment;
(32) Four points if chemical recovery or
  carbon regeneration is provided;
(33) Five points if thickening of sludge is
  provided;
(34) Ten points if
  anaerobic digestion of sludge is provided;
(35) Twelve points if aerobic digestion of
  sludge is provided;
(36) Two points
  if evaporative sludge drying is provided;
(37) Eight points if mechanical dewatering of
  sludge is provided;
(38) Twelve
  points if solids reduction by incineration or wet oxidation is
  provided;
(39) Five points if
  disinfection of the wastewater is provided;
(40) Five points if on-site generation of the
  disinfectant is provided;
(41) Two
  points if alternative power generation is provided;
(42) Two points if raw waste flow
  equalization is provided;
(43)
  Three points if mound system primary treatment is provided;
(44) Ten points if an aerated lagoon with
  anaerobic cells is provided as secondary treatment;
(45) Twelve points if a sequential batch
  reactor method is provided as secondary treatment;
(46) Ten points if irrigation with the
  process effluent is provided;
(47)
  Ten points if infiltration/percolation basins are provided as advanced waste
  treatment;
(48) Eight points if
  artificial wetlands are provided as advanced waste treatment;
(49) Eight points if land application of
  sludge is provided;
(50) Five
  points if methane gas recovery or reuse, or both, is provided;
(51) Three points if anaerobic lagoons for
  sludge are provided;
(52) Five
  points if groundwater monitoring and parameter analysis are provided;
(53) Two points for each industry that is
  pretreating its raw waste;
(54) Ten
  points if rotating biological contractors with one or more secondary clarifiers
  are provided as secondary treatment;
(55) Five points if dechlorination of the
  wastewater is provided;
(56) For
  the purpose of determining the laboratory control performed by plant personnel,
  the plants shall be awarded points if the tests of the wastewater are conducted
  in accordance with either
Methods for Chemical Analysis of Water and
  Wastes, 1983
or
Standard Methods for the Examination of Water and
  Wastewater
, or both, based on the following criteria:
(a) Three points for the determination of
  total and fecal coliforms by a multiple tube or membrane filter
  method;
(b) Two points for the
  determination of total and fecal coliforms by a presence/absence
  method;
(c) Three points for
  analysis of BOD;
(d) One point for
  biological determination in the plant or stream;
(e) One point for analysis of any pH by an
  electronic probe method or chlorine residual, pH, nitrogen, phosphorus, ammonia
  nitrogen by colorimetric method, or settleable solids by a
  gravimetric/volumetric method;
(f)
  Two points for analysis of any total dissolved solids, suspended solids, or
  volatile suspended solids by a gravimetric method;
(g) One point for analysis of dissolved
  oxygen by a meter and probe;
(h)
  Two points for analysis of chemical oxygen demand by a digestion/colorimetric
  method or grease; and
(i) Five
  points for determination of radioactivity.