35 Ill. Adm. Code 6020.602.230
Design Criteria
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE F: PUBLIC WATER SUPPLIES
CHAPTER I: POLLUTION CONTROL BOARD
PART 602 PERMITS
SECTION 602.230 DESIGN CRITERIA
Section 602.230
Design Criteria
A summary of
complete design criteria must be submitted for the proposed project containing,
when applicable, the following:
a) long
term dependable yield of the source of supply;
b) reservoir
surface area, volume, and a volume versus depth curve;
c) area of
the watershed;
d) estimated average and
maximum daily water demands for the design period;
e) number
of proposed service connections;
f) firefighting
requirements;
g) flash
mix, flocculation and settling basin capacities;
h) retention
times;
i) unit
loadings;
j) filter
area and the proposed filtration rate;
k) backwash
rate;
l) feeder
capacities and ranges; and
m) minimum
and maximum chemical application rates.