A new push to crack down on noise is moving ahead in Mendocino County after county leaders took action earlier this week. Supervisors gave the first reading Tuesday to a proposed ordinance that would set limits on loud noise overnight and put enforcement in the hands of the sheriff’s office. The plan includes warnings and fines for repeat issues, but there are already questions about whether deputies have the tools and staffing to handle it. A final decision is expected in the coming weeks, and if it passes, the rules would take effect about a month later.