Commission hears detailed field-maintenance review; staff plans additional aeration and outreach to peer cities

Parks maintenance staff delivered a technical briefing on field maintenance and renovation practices, described the primary challenges for natural-turf fields and outlined near-term steps the department will take.

Staff reported the city maintains 23 baseball/softball fields and 13 general-use soccer/football fields. Renovations traditionally occur twice per year—once in summer and once in winter—with field turnovers scheduled to avoid primary play seasons. The renovation work typically includes heavy aeration, slit seeding, over-seeding, application of a 1-mill sand profile on soccer fields, removal of bare areas, topdressing with an approximately 80/20 topsoil-to-sand mix, and application of slow-release fertilizer; after renovation fields are blocked for an eight- to ten-week germination period.

Maintenance staff said soil compaction on soccer and multiuse fields is the dominant issue, limiting water percolation and increasing surface ponding and turf damage. On baseball fields, staff said repeated dragging can create a lip at the arc and require grading or sod repairs to remove tripping hazards. Pest and rodent control, gopher holes, and isolated bee colonies were also discussed as recurring operational issues. Staff noted monthly pest control work is performed with a contractor.

To address compaction and increase field resilience, Parks staff said they will add an additional aeration during the playing season (scheduled to be done during daytime to avoid game disruption) and implement an in-season fertilizer application using a slow-release pelletized product staff described as safe for play after watering. Staff said they will also increase periodic field inspections and maintain closer coordination with leagues on scheduling and any needed closures.

Staff said they had reached out to several other Southern California agencies, including Irvine, Huntington Beach, and Norco, to compare practices. The transcript records that Irvine uses synthetic fields to divert heavy usage away from natural turf; Corona staff said the city’s fields are all natural turf, which limits total usage capacity. Staff said they will return with a findings and recommendations report in the first quarter of next year.

Commissioners asked several operational questions about irrigation follow-up, warranty and supplemental watering for planted trees (answered in a separate facilities report), whether leagues use formal reporting tools (staff said many use direct calls to staff or the city’s ClickFix platform), and whether rotating field orientation or age-group scheduling has been explored. Staff said those options are part of the longer ad-hoc committee review and noted that demand currently outstrips available field space.