Proposal for a supplemental wastewater indicator
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Proposal for a Supplemental Wastewater Indicator. Katherine Antos , Water Quality Team Leader Water Quality Goal Implementation Team Coordinator U.S. EPA Chesapeake Bay Program Office Chesapeake Bay Program Management Board May 9, 2012. Background.

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Proposal for a supplemental wastewater indicator

Proposal for a Supplemental Wastewater Indicator

Katherine Antos, Water Quality Team Leader

Water Quality Goal Implementation Team Coordinator

U.S. EPA Chesapeake Bay Program Office

Chesapeake Bay Program Management Board

May 9, 2012


Background
Background

  • Maryland suggested alternative wastewater indicator since wastewater data in current Reducing Pollution Indicators are affected by annual weather variations but other loads are not

  • Discussed with the Wastewater Treatment Workgroup, Water Quality Goal Implementation Team, and Management Board between October 2011 and April 2012

  • Guiding principles:

    • Maintain current Reducing Pollution Indicator based on wastewater monitoring data

    • Add supplemental indicator to clearly communicate on-the-ground efforts

    • Minimize reporting burden to the jurisdictions


Proposed supplemental indicator
Proposed Supplemental Indicator

  • On April 9, WQGIT approved the following indicator pending review of the indicator results:

    “The number and/or percentage of significant wastewater facilities with nutrient treatment technology operational and installed that will attain the wasteload allocation at the permitted flow. Indicator data to also include facilities that achieve permit limits through trading/offset programs.”

  • Indicator would be based on whether permit limits for significant facilities have reached their effective date

  • April 30: WQGIT and WWTWG approved sharing the following options with the Management Board

    • New York abstained




Features
Features

  • Data based on same reporting period as Reducing Pollution Indicator

  • Will show same years as Reducing Pollution Indicator

  • Executive summary will focus on watershed-wide progress. State-specific progress available online

  • In the future, could consider incorporating numbers or percents based on design flow


Decisions requested
Decisions Requested

  • Do you approve the adoption of a supplemental indicator that tracks significant wastewater facilities that that are meeting Bay TMDL WLAs?

  • If yes, would you prefer that this indicator report the number of significant facilities or the percent of significant facilities?


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