# 414608088375201 De Kalb County, IL, Local number, 38N5E-14.4d1 # Date Ground-Water Levels, period of record # (yr/mo/dy) (maximum feet below land-surface datum) 19921007 29.45 19921203 28.68 19930203 27.10 19930402 27.58 19930601 28.88 19930805 29.21 19931005 26.02 19931201 27.17 19940207 29.38 19940401 28.17 19940601 27.67 19940803 28.30 19941020 26.89 19941201 24.23 19950203 24.18 19950419 23.85 19950615 23.87 19950803 23.87 19951005 24.77 19951213 24.01 19960207 25.24 19960327 27.09 19960604 26.02 19960806 27.03 19961008 25.36 19961210 28.82 19970204 28.63 19970401 28.38 19970610 29.28 19970805 31.62