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 74:21:02:61 - Point system classification of water treatment plants

Current through Register Vol. 51, page 10, July 15, 2024
For the purpose of classification of water treatment plants, the plants
	 shall be awarded points based on the following criteria; however, the combined
	 total of subdivisions (1) and (2) may not exceed 20 points:
(1) One point per 10,000 or part thereof of
  the population served on a peak day;
(2) One point per 1,000,000 gallons per day
  (mgd) or part thereof for the designed average daily flow or peak month's flow
  for the average day, whichever is larger;
(3) Three points where the water supply
  source is from the groundwater;
(4)
  Five points where the water supply source is from surface water or groundwater
  under the direct influence of surface water;
(5) One point if the raw water supply source
  equals or exceeds one coliform organism per 100 milliliters;
(6) One point if the raw water supply source
  equals or exceeds 5,000 coliform organisms per 100 milliliters;
(7) One point if the raw water supply source
  equals or exceeds 500 organisms per one milliliter;
(8) One point if the raw water supply source
  equals or exceeds a nitrate concentration of 10 milligrams per liter as
  nitrogen;
(9) One point if the raw
  water supply source equals or exceeds one turbidity unit;
(10) One point if the raw water supply source
  equals or exceeds a fluoride concentration of 2.4 milligrams per
  liter;
(11) One point if the raw
  water supply source equals or exceeds an organic chemical concentration of 0.7
  milligrams per liter;
(12) One
  point if the raw water supply source equals or exceeds a sulfate concentration
  of 250 milligrams per liter;
(13)
  One point if the raw water supply source equals or exceeds an iron
  concentration of 0.3 milligrams per liter;
(14) One point if the raw water supply source
  equals or exceeds a manganese concentration of 0.05 milligrams per
  liter;
(15) Two points where
  aeration of the water is used in the plant;
(16) Four points where a pH adjustment of the
  water is made in the plant;
(17)
  Four points where adjustment of the water is made in the plant for stability or
  corrosion control;
(18) Eight
  points where adjustment of the water is made in the plant for taste and odor
  control;
(19) Four points where
  adjustment of the water is made in the plant for color control;
(20) Ten points where equipment is provided
  for removal of either iron or manganese, or both, from the water;
(21) Ten points where equipment is provided
  for softening of the water by ion exchange;
(22) Twenty points where equipment is
  provided for softening of the water by chemical precipitation;
(23) Fifteen points where equipment is
  provided for treatment of the water by coagulation, flocculation, and
  sedimentation;
(24) Ten points
  where equipment is provided for treatment of the water by filtration other than
  bag filtration or membrane filtration;
(25) Fifteen points where equipment is
  provided for treatment of the water by reverse osmosis, nanofiltration, or
  electrodialysis;
(26) Six points
  where equipment is provided for in-plant treatment of the sludge;
(27) Fifteen points where equipment for
  demineralization as advanced water treatment is provided;
(28) Five points where equipment is provided
  for fluoridation of the water;
(29)
  Five points for each type of equipment that is provided for disinfection of the
  water;
(30) Five points where
  equipment is provided for on-site generation of the disinfectant;
(31) Three points where equipment is provided
  for bag filtration;
(32) Fifteen
  points where equipment is provided for ultrafiltration or
  microfiltration;
(33) Five points
  where equipment is provided for the in-line addition of a coagulant or filter
  aid; and
(34) For the purpose of
  determining the laboratory control performed by plant personnel, the plants
  shall be awarded points if the tests of the water are conducted in accordance
  with
Standard Methods for the Examination of Water and Wastewater
,
  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 the
  determination of total bacterial heterotrophic plate count;
(d) Three points for the determination of
  biological organisms;
(e) One point
  for analysis of any pH by an electronic probe method or chlorine residual,
  iron, manganese, chloride, nitrate, sulfate, pH, phosphate, or fluoride by a
  colorimetric method;
(f) Two points
  for the analysis of alkalinity or chlorides by titration;
(g) One point for the analysis for turbidity
  by the use of a bench model turbidimeter;
(h) Two points for the analysis of any total
  dissolved solids or suspended solids by a gravimetric method;
(i) Five points for analysis of organic
  chemicals by gas or liquid chromatography;
(j) Five points for the analysis of inorganic
  chemicals by atomic absorption or inductively coupled plasma methods;
  and
(k) Five points for the
  determination for radioactivity.