3701-31-04 (B)(6)(c)(ii) / Backwash lines and lines from drainage sumps shall have an air gap and remain open to freely drain.
Backwash lines and lines from drainage sumps did not have an air gap prior to discharge
Open the lines that discharge into the backwash or drainage sumps so that there is an air gap and the lines can drain freely.
3701-31-04 (C)(3) / Total alkalinity is at or greater than 60 ppm
Repeat Total alkalinity was less than 60 ppm. The alkalinity was 30.
Raise the total alkalinity to at least 60 ppm.