Section 205.04. Abbreviations.

  The abbreviations listed below have the meanings shown unless otherwise specifically defined wherever they occur in chs. NR 200 to 299 and in public notices, fact sheets, and permits issued under the Wisconsin pollutant discharge elimination system.

(1)  "ac" means acre.

(2)  "avg" means the average for 30 days.

(3)  "BAT" means best available technology economically achievable.

(4)  "BCT" means best conventional pollutant control technology.

(5)  "BOD" or "BOD 5 " means the 5 day biochemical oxygen demand.

(6)  "BPT" means best practicable technology currently available.

(7)  "btu" means British thermal unit.

(8)  "cm" means centimeter.

(9)  "COD" means chemical oxygen demand.

(10)  "cu ft" means cubic foot.

(11)  "cu m" means cubic meter.

(12)  "cu y" means cubic yard.

(13)  "DMR" means discharge monitoring report.

(14)  "DNR" means department of natural resources.

(15)  "DO" means dissolved oxygen.

(16)  "EPA" means the U.S. environmental protection agency.

(17)  "g" means gram.

(18)  "gal" means gallon.

(19)  "gpd" means gallons per day.

(20)  "ha" means hectare.

(21)  "hp" means horsepower.

(22)  "in" means inch.

(23)  "k cu m" means 1,000 cubic meters.

(24)  "kg" means kilogram.

(25)  "kkg" means 1,000 kilograms.

(26)  "kw" means kilowatt.

(27)  "kwh" means kilowatt hour.

(28)  "l" means liter.

(29)  "lb" means pound.

(30)  "m" means meter.

(31)  "max" means the maximum for any one day.

(32)  "meq" or "meq/l" means milliequivalents or milliequivalents per liter.

(33)  "mg" means milligram.

(34)  "MGD" or "mgd" means millions of gallons per day.

(35)  "ml" means milliliter.

(36)  "mm" means millimeter.

(37)  "mpn" or "MPN" means most probable number.

(38)  "Mw" means megawatt.

(39)  "Mwh" means megawatt hour.

(40)  "NPDES" means the national pollutant discharge elimination system.

(40m)  "NSPS" means new source performance standards.

(41)  "pH" means the logarithm of the reciprocal of the hydrogen ion concentration or the negative logarithm of the hydrogen ion concentration.

(42)  "PCB" means polychlorinated biphenyl.

(43)  "POTW" means publicity owned treatment work.

(43k)  "PSES" means pretreatment standards for existing sources.

(43n)  "PSNS" means pretreatment standards for new sources.

(44)  "sq ft" means square foot.

(45)  "sq m" means square meter.

(46)  "SS" or "TSS" means total suspended (nonfiltrable) solids.

(47)  "TDS" means total dissolved (filtrable) solids.

(48)  "TOC" means total organic carbon.

(49)  "TTO" means total toxic organics.

(50)  "tpd" means tons per day.

(51)  "ug" means micrograms.

(52)  "WPDES" means the Wisconsin pollutant discharge elimination system.

History: Cr. Register, September, 1984, No. 345 , eff. 10-1-84; cr. (40m), (43k) and (43n), Register, April, 1990, No. 412 , eff. 5-1-90 ; correction in (intro.) was made under s. 13.93 (2m) (b) 7., Stats., Register, May, 2001, No. 545 .