Performance evaluation in an EMS

Answer:
When considering how to evaluate the overall environmental performance of a company I consider two criteria:
Alignment with the strategic orientation; and
Consistency with the results of the environmental assessment.
Considering the strategic orientation - for example:
if a company competes based on cost, I want to measure indicators that assess efficiency, reduction of wastes, reduction of unitary consumptions;
if a company competes based on service and interaction, I want to measure indicators that assess the progress of partnerships like shared resources, recycling and reusing;
if a company competes based on innovation, I want to measure the relationship of innovation with a lower environmental footprint.
Considering the results of the environmental assessment, I want to measure the progress of the interaction of the company with the environment. That is done through measuring indicators related with significant environmental impacts like: waste amount; quality and quantity of wastewater; unitary consumption of raw materials, water and energy, quality of air emissions, number of accidents or incidents.

2. What are the waste management requirements for ISO 14000?

Answer:
About waste management requirements of ISO 14001 I can list:
comply with law and regulations by working with legal waste operators;
comply with law and regulations in segregating, labeling, storing and transporting wastes;
prepare for emergencies, train people to handle wastes;
if it is a significant environmental aspect work to reduce waste generation, and or promote waste reuse or recycling
keep records.

The following material will provide you information about measuring performance and managing waste:
- ISO 14001 – Environmental performance evaluation - https://advisera.com/14001academy/blog/2015/07/06/environmental-performance-evaluation/
- 7 steps in handling waste according to ISO 14001 - https://advisera.com/14001academy/blog/2016/11/07/7-steps-in-handling-waste-according-to-iso-14001/
- ISO 14001 case study: Waste management in a construction company - https://advisera.com/14001academy/blog/2017/02/27/iso-14001-case-study-waste-management-in-a-construction-company/
- free online training ISO 14001:2015 Foundations Course - https://advisera.com/training/iso-14001-internal-auditor-course/
- ISO 14001 document template: Guideline for Electronic Waste Management - https://advisera.com/14001academy/documentation/guideline-for-electronic-waste-management/
- book - THE ISO 14001:2015 COMPANION – A A Straightforward Guide to Implementing an EMS in a Small Business - https://advisera.com/books/the-iso-14001-2015-companion/