Regulation confirming criteria for discharge of waste water into water bodies and the ground (No. 464 of 1994)

Regulation of the Government of the Republic of Estonia from December] 5. 1994 No 464 Tallinn, Toornpea Confirmation of the Requirements for Discharging Waste Water into a Water Body and Ground According to the Act of Water (RT I 1994,40,655) chapter 15 section :2 and chapter 24 section :2 the Government of the Republic Determines I. To confirm the "Requirements for Discharging Waste Water into a Water Body" (attached), considering the need to assure cleanness of the Baltic See :2 To confirm the "Requirement for Discharging Waste Water into Ground" (attached), following which should avoid the unpermitted deterioration of the natural features of the ground water. 3. In the cities and other settlements, as well as on single objects, where the sewage treatment plants don't exist, or where it is not possible to treat the wastewater in accordance to the requirements of the present regulation, the concentration limits of pollution in the waste water, before it is discharged into a water body or ground, will be established with water use permits (waterpermits) until January 1, 1997 4. Requirements confirmed with this regulation can be tightened only by the Government of the Republic, applied by the Minister of Environment, if it is nessecary to protect the quality of the water of the receiving water body. Pnme minister MInister of Environment Secretary of the State Andres Tarand Vootele Hansen 010 Kaevats Approved by Reg.No. 464 of December, 15, 1994, of the Government of the Republic of Estonia REQUIREMENTS FOR DISCHARGING WASTE WATER INTO A WATER BODY 1. In case of towns, other settlements and objects, the average amount of waste water is more than 2000 m' per day: 1) waste water shall be treated in a manner that the average concentration of pollutants in excess pollution will not exceed: 15.0 mg/l in case of organic substances by BOD~* ; 15.0 mg/l in case of floating substances; 1.5 mg/l in case of Ptot; 0.1 mg/l in case of single based phenols; 5.0 mg/l in case of oil products and shale oil; 2) modernized and new waste water treatment facilities shall guarantee that by 2010, the average concentration of Nto t in treated waste water will not exceed 10 mg/l. 2. In case of towns, other settlements and objects, the average amount of waste water is from 200 to 2000 m~ per ~ 1 ) waste water shall be treated in a manner that the average concentration of pollutants in excess pollution will not exceed: 25.0 mg/l in case of organic substances by BOD 7 ; 25.0 mg/l in case of floating substances; 2.0 mg/l in case of Ptot; 5.0 mg/l in case of oil proCucts and shale oil; 2) modernized and new waste water treatment plants shall, by the year 2010 the latest, guarantee: the raise of'degree of purification in case of pollutants mentioned in p. 1 of this paragraph by 20 %; an average concentration of Ntot in treated waste water not higher than 12 mg/l. 3. Waste water treatment facilities the flow rate of which is 10 - 200 m' per day, shall guarantee than average concentration of excess pollution in treated waste water not exceed: 25.0 mg/l in case of organic substances by BOD~; 25.0 mg/l in case of floating substances; 5.0 mg/l in case of oil products and shale oil. 4. If the daily flow rate of waste water is up to 10 m', the issuer of water permit may, until 1 January, 1997, establish lower requirements than prescribed in paragraph 3d these Requirements. 5. Enterprises processing, freighting, transporting and marketing oil products shall purify technological, precipitation and drainage waters before discharging into water-body so, that the concentration of oil products in the discharged waste water does not exceed 5.0 mg/l and the losses of processed oil products are not bigger than 3.0 g per ton. 6. Contaminated precipitation water is waste water and it may be discharged into a water-body in case the average concentration of pollutants does not exceed: 15.0 mg/l in case of organic substances by BOD7 ; 15.0 mg/l in case of floating substances; 1. 5 mg/l in case of Ptot; 250 000 in case of the coli count value; 5.0 mg/l in case of oil products. ~------~ * Biochemical oxygen demand for oxidation for 7 days. Approved by Reg.No. 464 of December, 15, 1994, of the Government of the Republic of Estonia REQUIREMENTS FOR DISCHARGING WASTE WATER INTO THE GROUND 1. Waste water and contaminated precipitation water may be discharged into the ground after preliminary treatment meeting the requirements (excl. in sanitary protection zone of drinking water), in the amount of 50 m} per day, if within an economically grounded distance there are no water bodies suitable for receiving waste water, and it is guaranteed, that the natural qualities of groundwater do not get worse. 2. Condi tions for using the ground as intake receiver of sufficiently treated waste water shall be established by water permit. 3. The highest level of groundwater shall be at least 1.2 m below the depth of waste water infiltration.