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Classified Streams Anti-degradation Must support aquatic life Meet - PDF document

10/15/2012 Possible Procedure to set DO Criteria for Newly Classified Streams Matt Combes Streams Community Ecologist Missouri Department of Conservation Classified Streams Anti-degradation Must support aquatic life Meet water


  1. 10/15/2012 Possible Procedure to set DO Criteria for Newly Classified Streams Matt Combes Streams Community Ecologist Missouri Department of Conservation Classified Streams � Anti-degradation � Must support aquatic life � Meet water quality criteria: � Current standards (5.0 mg/L DO) � OR develop appropriate standards 1

  2. 10/15/2012 ������������������������������� 2

  3. 10/15/2012 ������������ “Do they even have any life in them to protect?” 3

  4. 10/15/2012 Characteristics of Unclassified Sites (Watershed) � Mean watershed area (km 2 ) C = 196 (0.73 - 2382) U = 23 (0.44 - 578) �������������� X = 0.62 (0.03 - 1.5) ������ � � ������� � Fish 4

  5. 10/15/2012 Isn’t DO naturally lower in these small headwater streams? OK, so they have fishes. But do those fishes need 5 mg/L O 2 to thrive? 5

  6. 10/15/2012 ������������������ ����������� 6

  7. 10/15/2012 45*6"�7, �� �������� �!������� 89��:�*5 ;,9*5�,* ���� ���< <��. 9�*=4��,�*65",9 ��>� ���� <��� �������������������������� �?�9:�75""�� ��/� ��.. @��� 8 ,,�5"0�*65",9 ��<� ���> @�/@ *7� 7��36�8�** ���� ��// @��� �!���������������������������� 9,�45"�*65",9 ���/ ��/� @��� 8 ��:�8� 6,�� ���� ��/� @��/ 9�5"8�����93,9 ���� ��</ ���� *����%����+��*,-�����./��0��#�������$�������)��� 6�9"=6,����6�8 ���� ��<< ��.. "������%��"%����%���%����1�%���2��������% 8 �"3"�*,�75""�� ���� ��@@ ��>> *��:,97��36�75""�� ���� ��@� ��>� $����!��-�����������$����%�������%����� *395-,��*65",9 ���� ��@� ��>< %�#�3!��������� 8507��36�*65",9 ���� ���. ��/� 4�"3�5 ���93,9 ���> ���� ��/< �653,�*��:,9 ���> ��@� ���. ��77�"�*65",9 ���> ���� ��/< �,"39� �*3�",9� ,9 ���< ���/ ��/� *�"��*65",9 ���� ��@@ ��>> - �5"*�3�-75""�� ���� ���� ��</ 9,��*65",9 ���� ���� ��@. 8 ��:*-�33,��3�-75""�� ���/ ��/� @��� 8 ��:*395-,�3�-75""�� ���� ���. ���> �9�"0,369��3���93,9 ���. ���. ��@/ "���!�������#$��!�%�#��&%�'� �9,,:��6�8 ���� ���. ���> *��36,9"�9,�8, =����, ��.� ���> ���� ������� ���������(���#�#����� 4�36,���75""�� ���� ���/ ���� A�6""=���93,9 ���> ���� ��.� ���)�)��%�����%����������� 0� �,"�*65",9 ���/ ���� ��.� �90,7��36�8�** ���� ���� ��./ �����%���������� �"0,�9�*�"45*6 ���< ��.� ���. 8 �,05 ���< ��.� ���. 09,,"�*�"45*6 ��>. ��.� ��>@ �9�"0,*-�33,��*�"45*6 ��>. ��.� ��>@ * ,"�,9�7��3�7 ��>� ��.� ��>� =, ���8� 6,�� ��/� ��>� ���/ 7

  8. 10/15/2012 45*6"�7, �� �������� �!������� 89��:�*5 ;,9*5�,* ���� ���< <��. Joined Chronic DO value to predicted species list for all 9�*=4��,�*65",9 ��>� ���� <��� �?�9:�75""�� ��/� ��.. @��� segments on the MORAP 1:100,00 VST. Selected most 8 ,,�5"0�*65",9 ��<� ���> @�/@ sensitive species value as criteria for the segment. *7� 7��36�8�** ���� ��// @��� 9,�45"�*65",9 ���/ ��/� @��� Thus each segments DO criteria is the most sensitive 8 ��:�8� 6,�� ���� ��/� @��/ community members’ critical minimum dissolved 9�5"8�����93,9 ���� ��</ ���� 6�9"=6,����6�8 ���� ��<< ��.. oxygen concentration times 2 plus 20%. 8 �"3"�*,�75""�� ���� ��@@ ��>> *��:,97��36�75""�� ���� ��@� ��>� *395-,��*65",9 ���� ��@� ��>< 8507��36�*65",9 ���� ���. ��/� 4�"3�5 ���93,9 ���> ���� ��/< �653,�*��:,9 ���> ��@� ���. ��77�"�*65",9 ���> ���� ��/< �,"39� �*3�",9� ,9 ���< ���/ ��/� *�"��*65",9 ���� ��@@ ��>> - �5"*�3�-75""�� ���� ���� ��</ 9,��*65",9 ���� ���� ��@. 8 ��:*-�33,��3�-75""�� ���/ ��/� @��� 8 ��:*395-,�3�-75""�� ���� ���. ���> �9�"0,369��3���93,9 ���. ���. ��@/ �9,,:��6�8 ���� ���. ���> *��36,9"�9,�8, =����, ��.� ���> ���� 4�36,���75""�� ���� ���/ ���� A�6""=���93,9 ���> ���� ��.� 0� �,"�*65",9 ���/ ���� ��.� �90,7��36�8�** ���� ���� ��./ �"0,�9�*�"45*6 ���< ��.� ���. 8 �,05 ���< ��.� ���. 09,,"�*�"45*6 ��>. ��.� ��>@ �9�"0,*-�33,��*�"45*6 ��>. ��.� ��>@ * ,"�,9�7��3�7 ��>� ��.� ��>� =, ���8� 6,�� ��/� ��>� ���/ 8

  9. 10/15/2012 9

  10. 10/15/2012 Conclusions � This method allows the criteria to match the predicted fish communities DO needs. � It could be applied statewide by testing other species. � It should only be applied to segments where >90% of the predicted community has been tested. 10

  11. 10/15/2012 11

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