Ottawa County, MI Water Table Trend
Ottawa County, MI: the closest actual trend
The closest qualifying well to Ottawa County is 40 miles away in Oceana County, MI, where the trend runs holding roughly steady.
Ottawa County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Ottawa County's own number. If you own a well here, comparing your own depth log against this regional figure is worth doing before assuming either way. See Oceana County, MI's full page. See the no-data guide for why a county this close to a qualifying well still doesn't get its own number.
Ottawa County, Michigan in brief
About 306,235 people live across Ottawa County's 564 square miles, in Michigan. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Ottawa County isn't one of them yet, see the methodology guide for the exact qualifying bar.