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HomeMy WebLinkAbout1981-09-15; Planning Commission; ; SP 144B - San Diego Gas & Electric - Report of compliance regarding conditions of approval of a single stack at the Encina Power Plant• • SUPPLEMENTAL STAFF REPORT DATE: September 15, 1981 City Council Planning Department TO: FROM: SUBJECT: San Diego Gas & Electric - Report of compliance regarding conditions of approval of a single stack at the Encina Power Plant on property generally located on the east side of Carlsbad Boulevard between Cannon Road and the Agua Hedionda Lagoon. I. BACKGROUND As required by Specific Plan Amendmentr SP-144(B), a five year report was forwarded to the Planning Commission on August 26, 1981. This report pertained to the compliance of SDG&E with the conditions of approval of SP-144(B) and all applicable air quality standards and regulations. At the meeting on August 26th, two (2) residents of Carlsbad expressed concern regarding other air pollution issues. The issues and questions addressed: 1. 2. The a) b) The a) b) c) use of natural gas at Encina: What percentage of all fuel currently being used at Encina is natural gas? How much natural gas will be used in the future? use of a new fuel oil at Encina: Request for information regarding this fuel oil. What percentage of all fuel will this new oil comprise? What is the sulfur content of the oil? How does this compare with oil currently being used? 3. Acid Rain: a) What are the amounts and quantities of acid rain? b) What are the specific pollutants contained in acid rain? c) Where is the acid rain going when it leaves Carlsbad? d) Request for updated information regarding acid rain. • . .................. -~ .. ... In response to these public concerns, the Planning Commission directed staff to contact SDG&E to obtain additional information. SDG&E has replied to our request with the attached articles and letter dated September 1, 1981. Also in responce to public input, the Planning Commission requested staff to obtain a copy of the Reasonable Further Progress Report. This is an annual progress report, prepared by the San Diego County Air Pollution Control District, on the implementation actions taken to achieve and maintain the National Ambient Air Quality Standards in the the San Diego Air Basin. A copy of the report is available for your review in the Planning Department. II. ATTACHMENTS Letter from San Diego Gas & Electric Dated September 1, 1981 Misc. Articles and Graphs Fact Sheet -testing medium sulfur fuel CN/BH/nar 09/04/81 • ~ • San Diego Gas & Electric Ms. Catherine Nicholas City Planner Carlsbad, CA 92008 Dear Ms. Nicholas: September 1, 1981 FILE NO. MUC 100 Recently you telephoned and asked several questions concerning the San Diego Gas & Electric annual report on En- cina powerplant. These questions were asked by interested citizens at the Wednesday, August 26 Planning Commission meeting. Below I've attempted to answer the generic questions plus have included a couple of articles about acid rain. 1. What percentage of total fuel at Encina is natural gas versus residu~ al fuel? In 1980 76.78% of the total fuel used at the Encina plant was residu- al oil, and 23.22% was natural gas. We expect continued natural gas availability. Please see the attached graph indicating the fu~·. ture expected natural gas availability as compared to re- sidual oil for the entire SDG&E generation system. 2. What is the expected sulfur content for SDG&E proposed medium sulfur fuel oil test burn at Encina? We expect to bbtain 1.25% sulfur fuel oil for the test burn opera- tion. Please note the actual test bbtn period is only six weeks in duration. Attached is a fact sheet concerning the test burn proposal. POST OFFICE BOX 1831 • SAN DIEGO, CALIFORNIA 92112 • TELEPHONE: 714/232-4252 • • Ms. C. Nicholas -2-September 1, 1981 3. How much acid rain is there in San Diego County? We don't have that answer but Irve attached two arti- cl~s concerning acid rain. We don't believe our test burn of medium sulfur fuel will affect the acidity of rain. 4. What direction does the wind blow at Encina Powerplant for disper- sion of pollutants? Encina is located in a coastal environment and is subject to the normal sea breeze circulation. Thus one expects great variations in wind flows with heights. How- ever, surface wind data from on- site monitor, nearby Palomar Airport and Oceanside Weather station all indicate that for most of the day, winds from the southwest through northwest domi- nate. And easterly through northeasterly winds prevail at night. Average wind speeds are approximately 5-7 mph. Since this report goes to City Council on September 15, 1981, and there might be questions, SDG&E will have rep- resentation at the meeting. Sincerely, 4,m~ / E.M. Gabrielson Supervisor Licensing & Environmental /de Attach•.