Bang Pakong Combined Cycle (Unit 1-2 Replacement) Project Technical Document high from floor slab shall be provided for installation pumps and related equipment. Structural steel monorails and equipment hoist shall be provided for maintenance purpose. 2A.2. 1 3 Neutralization Basin The neutralization basin shall be reinforced concrete structure on piles. Minimum height of the pond walls over ground level shall be 0.90 m. and the minimum freeboard of 0.40 m shall be provided. Access from ground to basin floor shall be provided through stainless steel ladder equipped with stainless steel handrail. At top of wall around the basin, stainless steel handrail equipped with 0.50 m stainless steel chain link at the bottom of handrail shall be provided. If necessary, a chamber of the Pond with roof covering for monitoring devices installation shall be provided. Size and location of the chambers shall be submitted to EGAT for approval. A 3>