General aviation Flight Instructor reported there was conflicting chart information and traffic pattern indicators as to the correct traffic pattern at PCZ Airport.

Narrative

Stopped in PCZ on a VFR training flight to practice takeoffs and landings. Planned for left traffic on Runway 10; current VFR sectional and chart supplement indicate standard pattern for all runways at PCZ. Approaching the airport another airplane announced departure for Runway 10 on CTAF and intent to remain in right closed traffic. Changed plans at this point to fly right traffic and avoid conflict with the already established airplane. After we accomplished one turn in right traffic the other airplane landed and taxied clear; we then switched to left traffic and announced those intentions on CTAF. The other airplane then called us on CTAF and indicated that Runway 10 is supposed to be right pattern. After the next touch-and-go I observed the airport segmented circle; which indicates right traffic for runways 10 and 28 at PCZ. No other traffic observed at PCZ; we remained in left traffic for our last couple of turns in the pattern with no conflict. Unsure which pattern for runways 10 and 28 in PCZ is correct based on conflicting charting info and traffic pattern indicators at airport. Other than the Airplane Flying Handbook appears to indicate that pilots should follow the traffic pattern indicators if present.