1. PERHAM CITY WELL INFORMATION Assembled by: Luke Stuewe MN Department of Agriculture

2. Wells #3 & #4 Wells #5 & #6

3. Ground Surface #3#4#5#6 1954 196319761990 20’ 40’ 60’ 80’ = Well Casing = Well Screen 100’ 80’ 120’ 100’ 65’ 75’ 95’ 100’ 120’

4. City Purchased in 2004 Alfalfa 2003-2007

5. SUCTION LYSIMETER DATA Installed under this field In place since 2000

7. PERHAM CITY WELL DATA Data indicating declines and at the very least stabilization… –As expected, declines in groundwater nitrate will not happen as quickly as soil moisture levels

8. ½ pivot purchased by city planted into prairie grass full pivot planted into afalfa BeforeAfter

10. ½ pivot purchased by city planted into prairie grass full pivot planted into afalfa Before After

11. ½ pivot purchased by city planted into prairie grass full pivot planted into afalfa Before After

12. The city negotiated a trade of other city owned land for ½ of the other pivot adjacent to the city limits. –Northern ½ will remain in agricultural production for 10 yrs; after which time the owners agreed to take the land out of production Within the past year…

13. Perham’s Story…... Nitrate levels stabilized/declined following two major changes –Alfalfa planting –Land Acquisition Area producers have been actively involved groundwater protection –Nitrogen fertilizer research –ESN on corn & potatoes since the early 2000s –Alternative varieties (Altura’s and Umatilas) –Nitrogen fertilizer BMPs

14. Luke Stuewe Detroit Lakes 218-846-7425 Luke.Stuewe@state.mn.us