Monitoring for planning vs implementation projects (PowerPoint)

Document Sample
Monitoring for planning vs implementation projects (PowerPoint) Powered By Docstoc
					 Interpreting and Using
Existing Data to Identify
        Pollution
  Causes and Sources
Confirm impairments and identify
pollutants
Compare available monitoring data to wqs:
• Document magnitude of impairment
• Document seasonal/temporal patterns
• Document spatial distribution
Spatial Analysis
•   Isolate critical subwatersheds
•   Combine with land use/land cover data
Flow Relationships
• Point vs. Nonpoint
Flow Relationships
• Point vs. Nonpoint
Temporal Analysis
•   Seasonality
•   Stratify data by potential source activities
    –   Tillage
    –   Crop canopy development
    –   Manure/fertilizer applications
    –   Grazing season
    –   Logging
    –   Construction projects
    –   Street cleaning
Other tools:
•   Stakeholder knowledge
•   Direct observation (streamwalk)
•   Specialized tools, e.g., microbial source
    tracking, ground water aging
Supplementing available data
–   Windshield surveys
–   Interviews with residents
–   Volunteer monitoring
–   Bioassessment
–   Targeted sampling
–   Chemical/biological sampling

Helps lay the groundwork for implementation!
Examples
St. Albans Bay VT RCWP
•   Known WQ impairment due to eutrophication
    –   Obvious algae blooms & macrophyte growth
    –   Declining State Park visits, beach closures
    –   State DEC P monitoring
        •   Excessive P loads to Bay
        •   75% point source/25% nps


•   NRCS knowledge about current status of
    animal waste management, milkhouse waste,
    cropland erosion
St. Albans Bay VT RCWP
Lake Pittsfield IL
               •   Lake Pittsfield is a 220 ac
                   lake located near the city
                   of Pittsfield in the 25,393
                   ac Blue Creek watershed
                   in Pike County, western
                   Illinois
               •   Constructed in 1961 as a
                   flood control reservoir.
               •   Sediment deposition the
                   dominant water quality
                   problem
Lake Pittsfield IL
                                  4000                                                1000
                                  3500                                                900




                                                                                             Sediment Volume (ac-ft)
                                                                                      800




            Lake Volume (ac-ft)
                                  3000
                                                                                      700
                                  2500                                                600
                                  2000                                                500
                                  1500                                                400
                                                                                      300
                                  1000
                                                                                      200
                                  500                                                 100
                                    0                                                 0
                                    1961   1974           1979           1985      1992

                                            Lake volume          Sediment volume
Lake Pittsfield IL
• 1979 vegetative practices on agricultural land
  slowed sedimentation rate
• Lake sedimentation still higher than desired
• Additional practices needed – WASCOBs and
  sediment retention basins                                         12




                             Annual Sediment Yield (tons/acre) or
                                                                    10




                                Yield/Discharge (tons/ac-ft)
                                                                    8


                                                                    6


                                                                    4


                                                                    2


                                                                    0
                                                                         1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004

                                                                                        WASCOBs installed
                                                                                        Construction of 12 rock riffles (Newbury Weirs)
                                                                                        Station D annual sediment yield (tons/acre)
                                                                                        Station C annual sediment yield (tons/acre)
                                                                                        Station D yield/discharge (tons/ac-ft)
                                                                                        Station C yield/discharge (tons/ac-ft)
VT 319 NMP
                                                                            E. Coli Counts 1995 - 19 98
                                                                Lake Champlain Basin A g Watersheds NMP Project

                             10 0 0 0 0 0

                                                   WS 1
                              10 0 0 0 0
                                                   WS 2
  E Coli Counts (#/100 ml)




                                10 0 0 0           WS 3


                                 10 0 0


                                   10 0


                                    10


                                      1
                                            0 4 - J a n- 9 5 19 - J ul- 9 5 0 7 - F e b- 9 6 19 - A ug - 9 6 3 1- Ma r- 9 7 0 6 - Oc t - 9 7 2 9 - A pr- 9 8 0 9 - No v -9 8
                                                     12 - A pr- 9 5 3 0 - Oc t - 9 5 15 - Ma y -9 6 16 - De c - 9 6 0 2 - J ul-9 7 2 1- J a n- 9 8 2 9 - J ul-9 8
VT 319 NMP
                                                        Streamflow and E. Coli Counts
                                                            WS 2 1995 - 1998
                                               Lake Champlain A g Watersheds NMP Project

                               1000000


                                100000
  E. Coli Counts (# /100 ml)




                                 10000


                                  1000


                                   100


                                    10


                                     1
                                         0.1       1                     10                    100   1000
                                                       Instanta neous S treamflow (ft3/sec )
VT 319 NMP
                                                        Seasonal S treamflow and E. Coli Counts
                                                                   WS 2 1995 - 1998
                                                  Lake Champlain B asin Ag Watersheds N MP Project

                               1000000
                                               Winter
                                100000         Summer
  E. Coli Counts (#/1 00 ml)




                                 10000


                                  1000


                                   100


                                    10


                                     1
                                         0.1              1                     10                    100   1000
                                                              Instanta neous S treamflow (ft3/sec )
VT 319 NMP
VT 319 NMP
Identification of stressors
•   Where causes
    of biological
    impairment are
    unknown, use
    characterization
    data to help
    identify
    stressors
Stressor
Identification
Stressor Identification
Resources:
•    USEPA Stressor Identification Guidance Document
    www.epa.gov/waterscience/biocriteria/stressors/stressors.html


•    USEPA Causal Analysis/Diagnosis Decision
     Information System (CADDIS)
     http://cfpub.epa.gov/caddis/home.cfm

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:4
posted:10/28/2011
language:English
pages:26
xiaohuicaicai xiaohuicaicai
About