### J!Y. 

### 8. 2105 1 :34PM 

## Ci'V OF 

### CHANDLER ENVINNMENTA!

FACSIMILETRANSMITTAL. 

### DATE: June 8,2005 TO: 

### Dan Blair, GRIC AirPrograms 

### FROM: Jim Weiss, Environmental

### Program Manager PHONENUMBER: 

### 480 

### 782-2377 FAXNumber: 

### 480 

### 782-2382 RE: 

### TIP RegulationProposal. 

### FAXNUMBER: 

### 1520 

### 562-2245 PAGES 

### + COVER: 3 

### COMMENTS: Attached 

### is a 

### drafiproposal for changes to the wording

### in the De 

### Minimis Exemptions portion of 

### the draft 

### Part 

### I1 regulations. 

### X have also included the 

### language that Maricopa County uses for 

### this 

### type of exemption. Maricopa County gives an 

### exemption up 

### to 500 

### hours total. 

### X 

### think we really 

### are talking about what 

### the intentional

### use ofthe generatoriswithout consideration of 

### the duration of 

### the emergency itselc since that cannot be 

### controlled by 

### us. Review of the current testing schedules 

### and possible other performance tests that might be 

### required, it 

### appears that a limit of 200 

### hours 

### per year 

### would be acceptable. 

### 1 see 

### no reason at this 

### time to go 

### all the

### way

### up to the 500 hour 

### limit included

### in the Maricopa Countyrule. Please 

### look at 

### the proposal 

### and give 

### me your thoughts. Thaaks for your time. 

### Jim Weiss (480 

### 782-2377)

### Jun 

### 8. 

### 2005 1 :3Lol4 

### CITY OF CHANDLER ENVROfiMEI4TAL

/I. 

### Jim Weiss, City 

### of Chandler, 6/8/2005 

### GlUCTIP 

### Regulations 

### (03/01/05)
Recommended ChangestoPart 11

### Pennit Requirement

Part 

### TI, 2.1, 

### C, 2,c 1. 

### Stationary internal combustion enginesthat: 

### 1) have a

### rating less 

### than 250 

### horsepower output, 2) have a rating greater

### tlxm 

### 250 horsepower 

### output but 

### are 

### operated less than 

### 200 hours 

### per calendar 

### year, or - 

### 3) areused 

### solelv as a source 

### of standby

### power 

### or for emergency

### purposes md, 

### are operatedroutinely 

### for less 

### than200

### hoursper calendar year 

### fortesting 

### purposes.

### Jun. 

### 8. 

### 2005 1 :34PM 

### CITY OF tHANDLiR ENVIRONMENTAL

(a) Internal combustion engines with a manufacturer's maximum continuous rating of 50 horsepower or less or a maximum accumulative rating of 250 horsepower or less for engines

operated at or below 500 hours per year for routine testing and emergency standby operation for each internal combustion engine and provided such source demonstrates that the.potentialemissions at 500 hours of operation each of all internal combustion engines do not exceed 4,000 pounds of nitrogen oxides or carbon monoxide per year as evidenced by an installed hour meterorwritten usage records maintained by the operator; and (i) Are only used for power when normal power line service (ii) Are only usedfor the emergency pumping of water.

(c) Engines usedto propel motorized vehicles. Id) Gas turbines wdh a 

### makimum heat input at IS0 Standard Day Conditions of less than 3,000,000 BTU (3,162,000 kilojoules) per hour fired exclusively with natural gas andfor liquefied petroleum gas. (e) Portable internal combustion engines used on a temporary basis of no more than 30 days per calendar year at any one facility. (6) Food Equipment: (a) Equipment, excluding boilers, used in eating establishments or other retail establishments for the purpose of preparing food for human consumption. 

### (b) Bakeries: (i) Mixers and blenders used in bakeries where the products are edible and intended for human consumption. (ii) Ovens at bakeries whose total production is less than 10,000 pounds (4,535kg) per operating day.