Presentation
by
WA-DoE at Whatcom WD10 -- 22 March 2002
Steve Hood, Staff, WA-DoE
handout scanned/formatted by Marian Beddill   [an error occurred while processing this directive]

Lake Whatcom 303(d)
and TMDL

What it might mean for Water District 10

22 March 2002 Ecology WD 10 Discussion Slide 1

The Impairment

  • Criteria based determination
    • Dissolved Oxygen - Lake Class
      • Dissolved oxygen - no measurable decrease from natural conditions-
      • Erickson, Pelletier - Basin One study
      • EPA review
      • public comments and support
  • Beneficial use
  • Antidegradation
22 March 2002 Ecology WD 10 Discussion Slide 2

Paths to Remove a Waterbody from the 303(d) List

  • Other pollution control method
              40 CFR 130.7(b)(l)
  • New information/new analysis
  • TMDL
22 March 2002 Ecology WD 10 Discussion Slide 3

Path 1: Other Pollution Control Method

  • Targets
    • Meet water quality standards
  • Enforceable
    • Permit, license, ordinance
  • Schedule
    • Identified and reasonable
  • Monitoring
    • Measure effectiveness
Caveat:

Needs to be as
stringent as a
TMDL for removal
from the list.

Difficult to show
reasonable
targets, and
schedule without
an in depth study
22 March 2002 Ecology WD 10 Discussion Slide 4

Path 2: New Information/New Analysis

  • More recent data
  • Flaws in analysis
  • More sophisticated analysis

Caveat

Difficult to show that natural conditions are being met


22 March 2002 Ecology WD 10 Discussion Slide 5

Path 3: TMDL

  • Some parts of lake not impaired
    • Ensure loads compatible with other parts of the lake
    • Loads with reserve for growth
  • Impairment
    • Ecology sets load and wasteload allocations
    • City and county develop plans
      • Stormwater regulations
      • Land use regulations
22 March 2002 Ecology WD 10 Discussion Slide 6

Summary

  • All paths will require similar level of study
  • All paths will only need to require reduction where it creates or increases impairment
  • All paths require local decisions qn land use rules
  • Ecology is pursuing the path that will minimize uncertainty and allow the greatest flexibility to local land use regulators
22 March 2002 Ecology WD 10 Discussion Slide 7



The Initiative Group -- Whatcom
Our bottom-line principles are:
Protect the water supply in perpetuity -- maintain ecological viability of the lake for natural species -- distribute the financial burden fairly among those benefitting -- take immediate action if prudent -- take definitive action -- avoid actions which cut off future options.
-------------
1992 Resolution
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edited March 22, 2002 -- mgb