| Co-permittee |
| Information on Co-permittee HM Applicability Maps |
| City of Campbell |
| City of Cupertino |
| City of Los Altos and Town of Los Altos Hills |
| Town of Los Gatos and City of Monte Sereno |
| City of Milpitas |
| City of Mountain View |
| City of Palo Alto |
| City of San Jose |
| City of Santa Clara |
| Santa Clara County |
| City of Saratoga |
| Stanford University |
| City of Sunnyvale |
