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MDFW Hatchery NPDES Program Ken Simmons Chief of Hatcheries/Trout Project Leader.

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Presentation on theme: "MDFW Hatchery NPDES Program Ken Simmons Chief of Hatcheries/Trout Project Leader."— Presentation transcript:

1 MDFW Hatchery NPDES Program Ken Simmons Chief of Hatcheries/Trout Project Leader

2 MDFW HATCHERIES Sandwich Hatchery (1912) -Trout* Sunderland Hatchery (1913) - Trout* Palmer Hatchery (1914) - Atlantic salmon Montague Hatchery (1917) - Trout* McLaughlin Hatchery (1969) - Trout* * NPDES permit required

3 NPDES Four MDFW Trout Hatchery Permits Renewed in Past Year Observations on the process Formalin Discuss Today

4 Impact on Hatchery Operations Discharge limits were not substantially changed Frequency of effluent sampling was reduced Effluent sampling quarterly and only during major cleaning operations continued

5 Impact on Hatchery Operations Increased use of settling pools at 3 older DFW facilities Reduced production at 3 older facilities Greatly altered operations at 3 older facilities Formalin use all but eliminated at 3 older facilities

6 Impact on Pounds of Trout Produced

7 Effluent Monitoring Flow BOD TSS pH Dissolved oxygen Total ammonia nitrogen, as N* Residual chlorine* Total phosphorous* Formaldehyde Whole Effluent Toxicity - chronic** Whole Effluent Toxicity - acute** *Not at all facilities **New to current permit

8 Effluent Sampling Quarterly (except pH, formalin & chlorine) Three of the quarterly samples must be taken when conducting pool breakdown and/or settling pool or quiescent zone cleaning One quarterly sample must be taken during annual pool breakdown/cleaning Composite samples -- 1 per hour for 8 hours

9 Formalin Use Discharge limit of 0.74 mg/l (formaldehyde) at all facilities Developed formalin use plan for each hatchery as part of B.M. P. Do not know if it will work except at McLaughlin Hatchery

10 Formalin Use Problems 0.74 mg/l limit effectively eliminates use at 3 of 4 facilities due to flow patterns and dilution factors Difficult to retain a certified lab that can analyze formaldehyde with E.P.A. methods on short notice W.E.T. tests - labs to conduct work on short notice Cost of tests

11 Whole Effluent Toxicity (%) Acute (invertebrates only) *If formalin is used

12 Whole Effluent Toxicity (%) Chronic (invertebrates only) *If formalin is used

13 My Thoughts Agency must play an active role in the process Develop & maintain a professional working relationship with the regulators Be honest and forthcoming with information Do not hesitate to ask questions or seek clarification of issues Exercise your right to seek change and/or clarification of pre- public draft permits Tremendous amount of work involved

14 Summary We do not yet know if we will be able to meet new effluent limits at all stations but have developed BMP’s with that goal Formalin use at 3 of 4 hatcheries is all but impossible Formalin use at McLaughlin Hatchery is feasible but with constraints



17 BOD (mg/l) *During cleaning operations

18 TSS (mg/l) *During cleaning operations

19 Total Phosphorous (mg/l) *During cleaning operations ***No limit issued

20 Total Ammonia Nitrogen, as N (mg/l) *During cleaning operations ***No limit issued

21 Total Residual Chlorine (ug/l)

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