Standards for Effluents for Coal mines to be Discharged into Sewer, Stream, or Lands
(Source: Standards for Coal mine notifications, MoEF, 25th September 2000)

SN.
Parameters
 Concentration not to exceed.
1.
 pH 5.5 to 9.0
2.
 Chemical Oxygen Demand (COD) 250 mg/L
3.
 Total Suspended Solids (TSS) 100 mg/L-200 mg/L (Land for irrigation)
4.
 Oil & Grease (O&G) 10 mg/L

(Monitoring frequency of these parameters shall be once in a fortnight)
Optional parameters: All other parameters indicated in the general standards for discharge of environment pollutants under Schedule VI, shall be in addition to the effluent standards specified under clause 3. (Monitoring frequency shall be once in a year for the optional parameters).



PRIMARY WATER QUALITY CRITERIA FOR BATHING WATER
(Water used for organised outdoor bathing)

CRITERIA
RATIONALE
1. Fecal Coliform MPN/100 ml 500 (desirable)
2500 (Maximum permissible)		 To ensure low sewage contamination. Fecal coliform and fecal streptococci are considered as they reflect the bacterial pathogenicity.
2.Fecal Streptococci MPN/100 ml 100 (desirable)
500 (Maximum Permissible)		 The desirable and permissible limits are suggested to allow for fluctuation in environmental conditions such as seasonal change, changes in flow conditions etc.
3. pH Between 6.5-8.5 The range provides protection to the skin and delicate organs like eyes, nose, ears etc. which are directly exposed during outdoor bathing.
4.Dissolved Oxygen: 5 mg/L or more The minimum dissolved oxygen concentration of 5 mg/l ensures reasonable freedom from oxygen consuming organic pollution immediately upstream which is necessary for preventing production of anaerobic gases (obnoxious gases) from sediment.
5.Biochemical Oxygen demand 3 day, 270C 3 mg/L or less The Biochemical Oxygen Demand of 3 mg/l or less of the water ensures reasonable freedom from oxygen demanding pollutants and prevent production of obnoxious gases".
[Source: Serial No. 93 as per MoEF notification, 25th September, 2000.]
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