The public is encouraged to request service from the District. These requests generally are either to report a mosquito-related problem, inquire about information on ticks, or insect identification. There is no charge for these services. At this time, Lake County residents can fill out the online service request form, contact the District by phone (707-263-4770), or by visiting the District office (410 Esplanade St., Lakeport) during regular business hours (7:30 AM - 4:00 PM). Please DO NOT fill out the form below to request mosquitofish. If you would like mosquitofish please call or visit the District office.