Measure WQ-16 Metadata


Most Recent Measure Description:
ACS Code:WQ-16
PERS Code:bpc
Measure Key Words:POTWs comply wastewater discharge standards
Measure Language:Number, and national percent, of all major publicly-owned treatment works (POTWs) that comply with their permitted wastewater discharge standards. (i.e. POTWs that are not in significant non-compliance).
Goal, Objective and Subobjective:2.2.1: Improve Water Quality on a Watershed Basis
Measure Type:Target
ACS Shareholder:HQ
Comments:The FY10 EOY result was not available at the time of the publication of this appendix.


Type of Measure *Yes/NoFY09FY10FY11FY12
NPGYes4,256(86%)4,256(86%)86%86%
Budget (target)Yes86%86%86%86%
Strategic PlanNo   n/a
KPINo   n/a
ARRAYes   86%
StateGrantNon/an/an/an/a
* Note: The figures for all budget measures are targets. The figures for all the other types of measures are commitments established during the development of the National Water Program Guidance.


Office Information:
Office Lead:OWM
Contact:George Ames, EPA Office of Wastewater Management: ames.george@epa.gov | (202) 564-0661


Most Recent Measure Definition (From FY2010 or FY2010, if available):
Terms and Phrases:Publicly owned treatment works (POTWs) are waste-treatment works owned by a state, unit of local government, or tribe, usually designed to treat domestic wastewaters.
Methodology for Computation of Results:The Permit Compliance System, (PCS) tracks permit compliance and enforcement data for sources permitted under the Clean Water Act National Pollutant Discharge Elimination System (NPDES). Data in PCS include major permittee self reported data contained in Discharge Monitoring Reports (DMR), data on permittee compliance status, data on state and EPA inspection and enforcement response. Permittee self reported either state or EPA Regional offices enter DMR data into PCS. PCS automatically compares the entered DMR data with the pollutant limit parameters specified in the facility NPDES permit. This automated process identifies those facilities, which have emitted effluent in excess of permitted levels. Facilities are designated as being in Significant Noncompliance (SNC) when reported effluent exceedances are 20% or more above permitted levels for toxic pollutants and/or 40% or more above permitted levels of conventional pollutants.PCS contains additional data obtained through reports and on-site inspections, which are used to determine SNC, including: non-effluent limit violations such as unauthorized bypasses, unpermitted discharges, and pass through of pollutants which cause water quality or health problems; permit schedule violations; non-submission of DMRs; submission of DMRs 30 or more days late; and violation of state or federal enforcement orders. There are established computer algorithms to compare DMR effluent data against permitted effluent levels. The algorithms also calculate the degree of permitted effluent exceedance to determine whether toxic/conventional pollutant SNC thresholds have been reached.
Units:Number and national percent of major publicly-owned treatment works in compliance with their discharge permits
Universe:4,238. Total number of major publicly-owned treatment works
Baseline:3,670 (FY 2005). It is calculated by the Office of Enforcement and Compliance Assurance (OECA) using data collected in the Permit Compliance System (PCS) on major publicly-owned treatment works.


Most Recent Regional Measure Results Trend Data (From FY2010 End of Year Report, if available):
Measure Results Trend DataWQ-16.xls


Most Recent National Results Trend Data Chart (From FY2010 End of Year Report, if available):
Measure Results Trend Data Chart 


ACS Measure History:
Fiscal YearACS CodeMeasure Description
2012WQ-16Number, and national percent, of all major publicly-owned treatment works (POTWs) that comply with their permitted wastewater discharge standards. (i.e. POTWs that are not in significant non-compliance).
2011WQ-16Number, and national percent, of all major publicly-owned treatment works (POTWs) that comply with their permitted wastewater discharge standards. (i.e. POTWs that are not in significant non-compliance).
2010WQ-16Number, and national percent, of all major publicly-owned treatment works (POTWs) that comply with their permitted wastewater discharge standards. (i.e. POTWs that are not in significant non-compliance).
2009WQ-16Number, and national percent, of all major publicly-owned treatment works (POTWs) that comply with their permitted wastewater discharge standards (i.e., POTWs that are not in significant non-compliance)
2008WQ-16Number, and national percent, of all major publicly-owned treatment works (POTWs) that comply with their permitted wastewater discharge standards (i.e. POTWs that are not in significant non-compliance).
2007WQ-23Number, and national percent, of all major publicly-owned treatment works (POTWs) that comply with their permitted wastewater discharge standards (i.e. POTWs that are not in significant non-compliance).


Decision History: Click for measure decision details


Most Recent Data Sources and Data Quality and Limitations (From FY2011 or FY2010 V & V, if available):WQ-16.docx




External Links:
Congressional Justification
2010 EOY Report


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