Performance Standards 600's 601 General Requirements for Road and Railroad Loop Construction 602 Location of Roads and Railroad Loops 603 Road and Railroad Loop Embankments 605 Hydrologic Impact of Roads an Railroad Loops 607 Maintenance of Roads and Railroad Loops 608 Impacts of Other Transport Facilities 609 Other Support Facilities 610 Permanent Roads 621 General Requirements for Use of Explosives 622 Preblasting Survey 623 Blasting Schedule 624 Surface Blasting Requirements 625 Seismograph Measurements 626 Records of Blasting Operations 631 General Hydrology Requirements 632 Permanent Sealing of Drilled Holes 633 Water Quality Performance Standards 634 Reclamation of Drainage Basins 635 General Requirements for Temporary and Permanent Diversion of Overland Flow, Through Flow, Shallow Ground Water Flow, Ephemeral Drainageways, and Intermittent and Perennial Streams. 636 Special Requirements for Temporary Diversions 637 Special Requirements for Permanent Diversions 638 Sediment Control Measures 639 Sedimentation Ponds and Other Treatment Facilities 640 Discharge Structures 641 Acid-And Toxic-Forming Spoils 642 Permanent Impoundments and Flood Control Impoundments 643 Ground Water Protection 644 Protection of Ground Water Recharge 645 Ground Water Monitoring 646 Surface Water Monitoring 647 Transfer of Wells 648 Water Rights and Replacement 649 Discharge of Water into Underground Mines 650 Postmining Rehabilitation of Sedimentation Ponds, Diversions, Impoundments, and Treatment Facilities 651 Stream Channel Disurbances and Buffer Zones 652 Wells and Underground Openings: Safety