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uo vJ1ZUU0 16:30 FAX 2306475 Z003/004 Mr.Hoo August 3,2005 PA-0500424(UP)Langetwins Limited PTP Page 2 of.3 Rule 4601 (Architectural;Coatings)limits volatile organic compounds from architectural coatings This rules specifiesarchitectural coatings:storage; clean upabe and lling requirements ; Rule.46rff (Cutback, Slow Cure,.and' Emulsified Asphalt,,Paving and Maintenance;Operations) if. asphalt paving wllt;be.used,'then paving operations,of thisprotect inr,fl be subiec#to,Rule 4641: This;_ rule applies to the manufacture an use of.cutback asphalt,'slow cure asptalt acid emulsified asphalt. for paving and maintenance operations. : The District encograges''innovaboo, in.,measures..10 reduce air quality'impacts ,There are'a number of'; measures,that could :be incorporated .into.'the designloperatlon of 'this project to'„provide additional reductions of the overall ievel'of ernissions.' (Note`. Some of the�,measures niay already exist as County development standards. - Any.measure selected should:be implemented':#o the'fuilest,extent possible`) The measures listed below should .not be considered all-inclusive' h remain options that the project proponent should consider: • Construction activity mitigation measures include: Install sandbags or other erosion control measures to prevent silt runoff to public•roadways from sites with a slope greater than one percent Limit area,sui jett to excavation, gnarling, and other constmr-tion activity at'any one t![TlC Use catalyst equipped diesel construction equipment. - Minimize idling time (e.g. 10 minute maximum)' Limit the hours of operation of heavy duty equipment and/or the amount of equipment in use - Replace fossil-fueled equipment with electrically driven equivalents (provided they are not run via a portable generator set) - Curtail construction during periods of high ambient pollutant concentrations; this may include ceasing of construction activity during the peak-hour of vehicular traffic on adjacent roadways, and "Spare the Air Days”declared by the District. Implement activity management(e.g. rescheduling activities to reduce short-term impacts) During the smog season (May through October), lengthen the construction period to minimize the number of vehicles and equipment operating at the same time. Construction equipment should have engines that are Tier II (if available as certified by the Air Resources Board). Engines built after 1998 are cleaner Tier fl engines. Tier I and Tier 11 (2.5 gram) engines have a significantly less PM and NOx emissions compared to uncontrolled engines. To find engines certified by the Air Resources Board, see http://www.arb.ca.gov/msprog/offroad/cerVicerl.php. This site fists engines by type, then manufacturer. The "Executive Order" shows what Tier the engine is certified as. For more information on heavy-duty engines, please contact Mr. Kevin McCaffrey, Air Quality Specialist, at(559)230-5831. Off road trucks should be equipped with on-road engines when possible. Light Duty Cars and Trucks should be alternative fueled or hybrids. Minimize obstruction of traffic on adjacent roadways. Lastly, but of particular significance,we would like to inform you and the applicant that this new winery will be subject to the requirements of draft Rule 4694(Wine Fermentation and Storage Tanks).The latest version of draft Rule 4694 can be found at: http:llvalleyair.org/Workshops/postings/6-28- 051R4694_report W2.pdf. Our preliminary review of this project indicates that this new rule may effect the layout of the storage tank farm and other equipment.The applicant may contact Mr. Daniel Barber at 559- 230-5840 to discuss this rule in detail as this rule is still subject to revisions. Below is a summary of some sections of Rule 4694: Section 5.0—Requirements ■ Emissions from fermenters having an internal volume of 50,000 gallons or more shall be controlled by an Air Pollution Control Officer(APCO)-approved control system. An APCO-approved emissions control system shall achieve an overall capture and control efficiency of at least 86%.