1. Follow Up from the last Nutrient Criteria Meeting Dan Obrecht – UMC Limnology

2. Bootheel Region The region is also referred to as the Mississippi Alluvial Plains Region. Five Missouri counties are entirely within the region with another six counties being partially in the region. Elevation in the region ranges between 240 to 335 feet above sea level, with the exception of isolated ridges that rise above the alluvial plain.

3. How many Classified Lakes/Reservoirs? Dunklin – 0 New Madrid – 0 Mississippi – 5 Pemiscot – 2 Stoddard – 9 Based on 2005 list

4. MU Data Secchi (meters) TP (μg/L) TN (μg/L) CHL (μg/L) ISS (mg/L) Delaney0.293322050189.63.50 Big Oak0.474253012.40.53 Both lakes sampled in 2001 and 2002

5. Delaney Lake Mississippi Co. 110 acres

6. Big Oak Mississippi Co. 22 acres

7. Other Mississippi Alluvial Plains Waterbodies

8. Dexter City Lake Stoddard County 11 acres

9. Combs Lake Pemiscot Co. Not Classified 150 acres

10. Hall’s Lake – Crowley’s Ridge CA Stoddard County 50 acres Not Classified

11. How do we deal with lakes and reservoirs in the Mississippi Alluvial Plains?

12. Sample Size?

15. How many Samples to Take? ParameterPrecisionSummerSpring-Fall Total Nitrogen 15%34 25%12 Total Phosphorus 15%37 25%12 Chlorophyll15%1018 25%46

16. Large Reservoir - Spatial Variability

17. Table Rock Lake 2005 average TP 5 7 25 34 76 31 14 48 19

18. Bull Shoals Lake – Little North Fork Arm 26 13 6 2005 average TP 7

19. Long Branch Lake 27 240 259 2005 average TP

20. Stockton Lake 2004 average TP 29 53

22. James River Arm - March 1, 2001

23. James River Arm – August 3, 2000