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Incremental Measure Progress and R3 Conditions Report

Incremental Measure Progress and R3 Conditions Report. Status Discussion R3 Water Programs Meeting May 12, 2009. Current Progress. Analytical Framework Established Data Accessed and Reviewed Core set of parameters – TP, TN, TSS Second set of data analyses, outputs Display Options Proposed

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Incremental Measure Progress and R3 Conditions Report

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  1. Incremental Measure Progressand R3 Conditions Report Status Discussion R3 Water Programs Meeting May 12, 2009

  2. Current Progress • Analytical Framework Established • Data Accessed and Reviewed • Core set of parameters – TP, TN, TSS • Second set of data analyses, outputs • Display Options Proposed • Measure Language Proposed

  3. Current Progress • Region III Census Data Compiled • Current Biologic Assessments Mapped • Station Spatial Analysis Begun • Shared Dialogue Benefits

  4. Current/Near-term Actions • Consensus on Display Option • Refinements of Census Information • Identification of ‘Footnote’ Issues • Work Group Call on May 21 • Input for June 3-4 R3 Water Directors’ Meeting

  5. Future Discussions • Regionalization Issues – Data Displays • Refinements in Biologic Summaries • Bay Watershed Composite • Region 3 Composite

  6. Census Data Observations • Approximately 70% of the R3 182,000 stream miles have been assessed. • Of the assessed total (128,000 miles), two-thirds (86,300) are fully supporting aquatic life use. • R3 has 33,000 Category 5 stream miles (18% of total stream miles) impaired for aquatic life use.

  7. Census Data Observations • Nearly 12,000 stream miles have had TMDLs completed (Category 4A) and this figure has increased 267% in just 4 years (2004 to 2008). • 2,381 waters in the 2002 impaired water inventory have had TMDLs completed for all listed impairments.

  8. Biologic Data • Captured a ‘Regional view’ – six component pieces. • Documents extent of current assessments. • Coordination with CBP efforts. • Provides a solid foundation for future Regional discussions.

  9. VADEQ Assessment Results • Red: not supporting • Green: supporting

  10. Measure Language Options • Reportof a core set of parameters (e.g. TN, TP, TSS) with improving trends in water quality results in comparison to reference period. • Reported as percentage gain in defined higher water quality interval. • Reported as index score gain based on average results in a year.

  11. SRBC Data Analysis

  12. West Virginia Water Temperature

  13. Discussion • Display options. • Measure language refinement. • What documentation is needed. • What issues need to be identified.

  14. Kendall Trends • Formal statistical application to data. • Seasonal, 12 monthly blocks. • Covariance sum test for independence of seasons Hirsch and Slack (1984). • Epsilon treatment of remark coded values, (pH − pH_epsilon , pH + pH_epsilon).

  15. Kendall Trends on 117 Estuarine Long Term Stations

  16. Kendall Trends confirms Nitrogen Interim Measures y = 0.0136x + 3.0004 r^2 = 0.1105

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