MOJAQMD RULE 905 STD. FOR PORTLAND CEMENT PLANT

LAST REVISED 12/03/76

(Adopted: December 3, 1976)

Rule 905

Standards of Performance for

Portland Cement Plant



(a) Definitions

(1) KILN FEED means all material except fuels entering the

kiln measured on a dry basis.

(2) PORTLAND CEMENT PLANT means any facility manufacturing

portland cement by either the wet or dry process.

(b) Emission Standard

This rule applies to the following affected facilities in

portland cement plants the construction, modification or

reconstruction of which commenced after August 17, 1971;

kiln, clinker cooler, raw mill system, finish mill system,

raw mill dryer, raw material storage, clinker storage,

finished product storage, conveyor transfer points, bagging

and bulk loading and unloading systems.

On and after the date on which the performance test required

to be conducted by Rule 902 (b)(1) is completed, no owner or

operator of a facility subject to the provisions of this

rule shall cause to be discharged into the atmosphere:

(1) Gases from any kiln which:

(A) Contain particulate matter in excess of 0.15

kilograms per metric ton (0.30 lb. per ton) of

feed to the kiln.

(B) Exhibit 20 percent opacity or greater.

(2) Gases from a clinker cooler which:

(A) Contain particulate matter in excess of 0.050

kilogram per metric ton (0.10 lb. per ton) of feed

to the kiln.

(B) Exhibit ten percent opacity or greater.

(3) Gases from any affected facility other than the kiln

and clinker cooler which exhibit ten percent opacity or

greater.

(c) Monitoring

The owner or operator of any portland cement plant subject

to the provisions of this rule shall record the daily

production rates and kiln feed rates.

(d) Testing Procedure

Emissions shall be tested according to the methods specified

by the Air Pollution Control Officer.