Upon receipt of the complete application and plans from the Zoning Board of Appeals, the Planning Board shall review the general arrangement of the mobile home park, the location of streets, location and arrangement of lots, the location structures within the park, the location of entrances and exits and the location type and extent of landscaping and screening materials. The Planning Board shall return the complete application, together with its written findings, to the Zoning Board of Appeals within 30 days of receipt of the complete application. Failure to act within 30 days of receipt of the complete application shall be deemed approval.