API 50 : 1995 : R2013

0 Introduction
1 Scope
2 References
2.1 Standards
2.2 Other references
3 Definitions
4 Regulatory compliance
4.1 Introduction
4.2 Environmental agencies
4.3 Environmental laws and regulations
4.4 Notification and reporting
4.5 Environmental training and review
5 Surface and groundwater
5.1 Introduction
5.2 NPDES introduction
5.3 Subsurface disposal
5.4 Spill prevention
5.5 Sanitary systems
6 Air emissions
6.1 Introduction
6.2 General
6.3 Prevention of significant deterioration (PSD)
6.4 Ozone nonattainment area
6.5 Permitting, NSPS requirements, and standard
     exemptions
6.6 Air toxics
6.7 National emissions standards for hazardous air
     pollutants (NESHAPS)
6.8 Emissions units
7 Solid waste management
7.1 Introduction
7.2 General waste management guidance
7.3 RCRA waste characterization
7.4 Disposal topics
8 Release reporting
8.1 Introduction
8.2 Scope
8.3 Clean water act
8.4 The comprehensive environmental response,
     compensation and liability act (CERCLA)
8.5 EPCRA (SARA title III)
8.6 Exempted/permitted releases
8.7 Process upsets
8.8 Material safety data sheet (MSDS)
9 Site closure and restoration
9.1 Introduction
9.2 Preplanning
9.3 Site restoration
9.4 Property transfer
Tables
1 - Ozone nonattainment criteria
2 - Common hazardous pollutants for gas plants

Intended to assist gas plant operators in understanding their environmental responsibilities. It is intended to be used primarily by environmental, engineering and operations personnel and management involved in building, maintaining, modifying, and operating gas processing plants.