Manways are required for multiple purposes on the tower. Additional manways are required to meet OSHA egress requirements and additional air exchanges per hour. KLM is the only engineering firm that has designed manways for concrete ground storage reservoirs that are approved by both the Minnesota Department of Health and the Wisconsin Department of Natural Resources.
KLM upgrades towers with interior, valve pit, and FAA aviation warning lights to LED style lighting. This eliminates safety hazards with city personnel replacing light bulbs.