# Appendix D

Summary of District Rules that Apply to Portable Engines

# D - 1Day/Annual Caps1) NOx or VOC emissions shall not exceed 100pounds per day for each pollutant, excludingemissions from offroad engines; 2) total PM10emissions shall not exceed 150 pounds per day,excluding emissions from offroad engines; and 3)emissions shall not exceed 10 tons per year of anyaffected pollutant when operated in anyparticipating district. [Rule 2100]Equipment shall not emitno more than 10 tons/yr ofeach pollutant, including POC, CO, NOx, PM10,NPOC or SO2. [Rule 2-1-220]Not ApplicableEmission Rates1) Engines >50HP but <117 HP shall not exceed NOxemissions of 10.5 g/hp-hr or be installed with a turbochargerand timing retarded by a min. of 4 degrees from themanufacturer's standard timing; 2) engines >117 HP but<400 HP shall not exceed NOx emissions of 10 g/hp-hr or beinstalled with a turbocharger and timing retarded by a min. of4 degrees from the manufacturer's standard timing; 3)engines>400 HP shall not exceed NOx emissions of 7 g/hphr or be installed with a turbocharger with aftercooler andtiming retarded by a minimum of 4 degrees from themanufacturer's standard timing; and 4) emission from sulfurshall not exceed 0.05 percent by weight; 5) emission fromPM shall not exceed 0.10 grain per standard dry cubic feet.[Rule 2100]1) Engines > 100 bhp and < 117 bhp shall not exceed 770ppm of NOx; 2) engines > 117 bhp and < 400 bhp shall notexceed 550 ppm of NOx; and 3) engines>400 bhp shall notexceed 535 ppm of NOx. [Rule 1110.2]Not ApplicableFor diesel-cycle engines rated at 500 HP or more andoperate more than 100 hours each calendar year, NOxemissions shall not exceed 700 ppmv and CO emissionstandards shall not exceed 4500 ppmv. [Rule 1160]District Regulations Affecting Portable EnginesDistrictAntelope ValleyBAAQMDMojave Desert

# D - 2Day/Annual Caps1) Except for emissions from existing emissions units,NOx or VOC emissions shall not exceed 100lbs/day foreach pollutant; 2) except for emissions from existingemissions units, total PM10 emissions shall not exceed150lbs/ day; and 3) emissions shall not exceed 10 tonsper year of any affected pollutant when operated in anyparticipating district. [Rule 523]1) Except for emissions from existing emissions units,NOx or VOC emissions shall not exceed 100 lbs./ dayfor each pollutant; 2) except for emissions from existingemissions units, total PM10 emissions shall not exceed150 lbs./ day; and 3) emissions shall not exceed 10 tonsper year of any affected pollutant when operated in anyparticipating district. [Rule 12.1]1) Except for emissions from existing emissions units,NOx or VOC emissions shall not exceed 100 lbs./ dayfor each pollutant; 2) except for emissions from existingemissions units, total PM10 emissions shall not exceed150 lbs./ day; and 3) emissions shall not exceed 10 tonsper year of any affected pollutant when operated in anyParticipating District. [Rule 2280]Emission Rates1) NOx emissions from naturally aspirated engines shall notexceed 10 g/bhp-hr; 2) NOx emissions from turbochargedengines shall not exceed 7.2 g/bhp-hr; 3) emission fromsulfur shall not exceed 0.05 percent by weight; and 4)emission from PM shall not exceed 0.10 grain per standarddry cubic feet. [Rule 523]1) NOx emissions from naturally aspirated engines shall notexceed 10 g/bhp-hr; 2) NOx emissions from turbochargedengines shall not exceed 7.2 g/bhp-hr; 3) emission fromsulfur shall not exceed 0.05 percent by weight; and 4)emission from PM shall not exceed 0.10 grain per standarddry cubic feet. [Rule 12.1 & 20.4]1) NOx emissions from naturally aspirated engines shall notexceed 10 g/bhp-hr; 2) NOx emissions from turbochargedengines shall not exceed 7.2 g/bhp-hr; 3) emission fromsulfur shall not exceed 0.05 percent by weight; 4) emissionfrom PM shall not exceed 0.10 grain per standard dry cubicfeet. [Rule 2280]DistrictNorthernSierraSan DiegoSanJoaquin ValleyUnified

# D - 3Day/Annual Caps1) NOx or VOC emissions shall not exceed 100lbs/ dayfor each pollutant; 2) total PM10 emissions shall notexceed 150lbs/ day; and 3) emissions shall not exceed10 tons per year of any affected pollutant when operatedin any Participating District. [Rule 220]Not ApplicableNot Applicable1) NOx or VOC emissions shall not exceed 100lbs/ dayfor each pollutant; 2) total PM10 emissions shall notexceed 150lbs/ day; and 3) emissions shall not exceed10 tons per year of any affected pollutant when operatedin any participating district. [Rule 3.3]Emission Rates1) NOx emissions from naturally aspirated engines shall notexceed 10 g/bhp-hr; 2) NOx emissions from turbochargedengines shall not exceed 7.2 g/bhp-hr; 3) emission fromsulfur shall not exceed 0.05 percent by weight; and 4)emission from PM shall not exceed 0.10 grain per standarddry cubic feet. [Rule 220]By January 1, 1999, the following apply: 1) Engines >50HPbut <117 HP shall not exceed NOx emissions of 10 g/hp-hror be installed with a turbocharger and timing retarded by amin. of 4 degrees from the manufacturer's standard timing;2) engines >117 HP but <400 HP shall not exceed NOxemissions of 7.2 g/hp-hr or be installed with a turbochargerand timing retarded by a min. of 4 degrees from themanufacturer's standard timing; and 3) Engines > 400 HPshall not exceed NOx emissions of 7 g/hp-hr or be installedwith a turbocharger with aftercooler and timing retarded by aminimum of 4 degrees from the manufacturer's standardtiming.By January 1, 2010, portable engines must meet the moststringent emissions standard which is the applicableemissions standard in effect and set forth in Title 13 of theCalifornia Code of Regulations for that engine rating. [Rule1110-2]All drilling operations shall be powered by grid power unlessexempted by Section C of this rule. [Rule 74.16]1) NOx emissions from naturally aspirated engines shall notexceed 10 g/bhp-hr; 2) NOx emissions from turbochargedengines shall not exceed 7.2 g/bhp-hr; 3) emission fromsulfur shall not exceed 0.05 percent by weight; and 4)emission from PM shall not exceed 0.10 grain per standarddry cubic feet. [Rule 3.3]DistrictSan Luis ObispoSCAQMDVenturaYolo-Solano