If you have a question or concern that you would like to discuss with someone at the Rossmoor/Los Alamitos Sewer District, please call the General Manager at (562) 431-2223 Monday through Friday between 8:30 a.m. and 12:30 p.m. The District maintains a 24 hour Emergency Response Line. The emergency number is (562) 431-2223. The district maintains an email address as well. Contact the General Manager at sewerdistrict@aol.com