Or. Admin. R. 340-228-0635
The owner or operator of any coal-fired electric utility steam generating unit must maintain a file of all measurements, data, reports, and other information required in OAR 340-228-0606, 0609, 0637 and 0639 and 40 CFR part 63 subpart UUUUU at the source in a form suitable for inspection for at least 5 years from the date of each record.
ORS 468.020 & 468A.310
ORS 468A.025
DEQ 4-2013, f. & cert. ef. 3-27-13
DEQ 15-2008, f. & cert. ef 12-31-08