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Discharge Monitoring Report (DMR)

The Clean Water Act of 1972 created the National Pollution Discharge Elimination System (NPDES).  This system established federally regulated requirements for wastewater treatment plants such as the Western Westmoreland Municipal Authority (WWMA).  These requirements are spelled out in the Authority's NPDES Permit, which sets minimum standards for the quality of water being discharged from the plant into Brush Creek.  The WWMA must report and meet all of these standards to remain in compliance with its NPDES Permit.

As part of the Western Westmoreland Municipal Authority's permit to operate a sewage treatment plant, each month a discharge monitoring report must be submitted to the Department of Environmental Protection (DEP).  These reports summarize the quality of the treated effluent being discharged from the Plant into Brush Creek.  The following parameters are monitored and reported:  pH, total suspended solids, gamma-BHC, flow, chlorine residual fecal coliforms, dissolved oxygen, carbonaceous BOD, and plant bypasses during high rainfall events.  The DEP uses these summary reports to ensure that the Authority is operating within permitted limits for each of the above mentioned parameters.

The following is an example of a DMR:

Discharge Monitoring Report - August 2001
 
Permittee name: Western Westmoreland STP
Address: 12441 Route 993
424 Main St.
North Huntingdon, PA 15642
Permit number: PA0027570
Discharge number: 001 A
Monitoring period: 03-01-2001 to 03-31-2001

pH, 00400, A 0 0, Disinfect Prcs Cmplt

Parameter Sample Measurement Permit Requirement
Quantity or Loading Average ****** ******
Maximum ****** ******
Units ******
Quality or Concentration Minimum 6.88 6.0 minimum
Average ****** ******
Maximum 7.03 9.0 maximum
Units 12 su
No. Ex. 0  
Frequency of Analysis 2 / 7 twice / week
Sample Type GRAB GRAB

Solids-Total, Suspended, 00530, A 0, 0, Disinfect Prcs Cmplt

Parameter Sample Measurement Permit Requirement
Quantity or Loading Average 104 1101 mo avg
Maximum 159 1651 mx wk av
Units 26 lbs / day
Quality or Concentration Minimum ****** ******
Average 3.3 30 mo avg
Maximum 6.0 45 wk av
Units 19 mg / l
No. Ex. 0  
Frequency of Analysis 2 / 7 twice / week
Sample Type 8HC comp-sS

Gamma-BHC, 39340, A 0 0, Disinfect Prcs Cmplt

Parameter Sample Measurement Permit Requirement
Quantity or Loading Average ****** ******
Maximum ****** ******
Units ******
Quality or Concentration Minimum ****** ******
Average 0 report mo avg
Maximum ****** ******
Units 19 mg / l
No. Ex. 0  
Frequency of Analysis 1 / month once / month
Sample Type 8HC comp-s

Flow-In Conduit or Thru Treatment Plant, 50050, A 0 0, Disinfect Prcs Cmplt

Parameter Sample Measurement Permit Requirement
Quantity or Loading Average 4.219 report mo avg
Maximum 8.811 report daily mx
Units 03 mgd
Quality or Concentration Minimum ****** ******
Average ****** ******
Maximum ****** ******
Units ******
No. Ex. 0  
Frequency of Analysis continuous continuous
Sample Type recorder recorder

Chlorine-Total, Residual, 50060, A 0 0, Disinfect Prcs Cmplt

Parameter Sample Measurement Permit Requirement
Quantity or Loading Average 35 37 mo avg
Maximum ****** ******
Units 26 lbs / day
Quality or Concentration Minimum ****** ******
Average 0.1 1.0 mo avg
Maximum ****** ******
Units 19 mg / l
No. Ex. 0  
Frequency of Analysis 2 / 7 see permit
Sample Type GRAB GRAB

Coliform-Fecal, General, 74055, A 1 0, Disinfect Prcs Cmplt

Parameter Sample Measurement Permit Requirement
Quantity or Loading Average ****** ******
Maximum ****** ******
Units ******
Quality or Concentration Minimum ****** ******
Average 18.62 2000 mo geomn
Maximum ****** ******
Units 13 / 100 ml
No. Ex. 0  
Frequency of Analysis 2 / 7 twice / week
Sample Type GRAB GRAB

BOD-Carbonaceous, 05 day, 20C, 80082, A 0 0, Disinfect Prcs Cmplt

Parameter Sample Measurement Permit Requirement
Quantity or Loading Average 246 917 mo avg
Maximum 291 1376 ma\x wk av
Units 26 lbs / day
Quality or Concentration Minimum ****** ******
Average 7.1 25 mo avg
Maximum 7.5 37.5 mx wk avg
Units 19 mg /l
No. Ex. 0  
Frequency of Analysis 2 / 7 twice / week
Sample Type 8HC comp-s
 

 

 

 

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Last modified: May 3, 2018

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