Environmental, Social and Governance (ESG) - Principles and Practice · Environment

Waste, Water and Resource Management in ESG for CS Professional

Updated 11 October 2026 · Fact-checked

Waste, water and resource management is how a company cuts waste, uses water responsibly and keeps materials in use longer. In India it is driven by waste rules under the Environment (Protection) Act, 1986, including extended producer responsibility (EPR), and by BRSR disclosures. Answer in exam: rule, facts, action, conclusion.

Understand Waste, Water and Resource Management

Every business takes in materials and water and sends out waste. Resource management means doing this with less harm and less cost. It covers three things: what you throw away, how much water you use and pollute, and how well you use raw materials.

In India, waste is mainly regulated through rules made under the Environment (Protection) Act, 1986. These include rules on plastic waste, solid waste, e-waste, hazardous and other waste, battery waste and construction and demolition waste. Do not memorise rule dates unless you are sure. Learn what each rule asks of a company and who enforces it. Pollution control boards (the Central Pollution Control Board and State Boards) are the main regulators.

Extended producer responsibility (EPR) makes the producer, importer or brand owner responsible for the product after the customer has used it. The company must see that the waste is collected and recycled, reused or disposed of properly. It is usually met through registered recyclers or processors and tracked on a government portal. Failure can attract environmental compensation.

Water stewardship means managing water use in a way that is fair, sustainable and good for the business and the community. A company measures its water withdrawal, consumption and discharge, cuts use, treats and reuses wastewater, and protects shared sources in water-stressed areas. It also works with local communities and suppliers.

A circular economy replaces the take-make-dispose model. Products are designed to last, be repaired, reused, remanufactured or recycled, and waste is treated as a resource. Example: a company that takes back used packaging, recycles it and uses it in new packaging. Resource efficiency means getting more output from less input. Companies report these efforts in the BRSR, which has disclosures on water, waste and EPR. The company secretary helps with policy, compliance checks, registrations, returns and board reporting.

Key rules to remember

Waste hierarchy: Prevent → Reduce → Reuse → Recycle → Recover → Dispose; Prefer options from the left. Disposal in landfill is the last resort.
Extended producer responsibility (EPR): Producer / importer / brand owner = responsible for post-consumer waste of its products; Met through collection, recycling or processing, usually with registered entities, and reported on the official portal.
Water intensity: Water intensity = Total water consumed ÷ Output (or revenue); Use the same unit each year so that trends can be compared.
Water balance: Water consumed = Water withdrawn − Water discharged; A common way to find consumption. Check that the units match.
Recycling rate: Recycling rate (%) = (Waste recycled ÷ Total waste generated) × 100; Use the same period and the same unit for both figures.
Circular economy loop: Design → Use → Collect → Recycle / Remanufacture → Back to design; Contrast with the linear take-make-dispose model.

How to solve Waste, Water and Resource Management questions

Use this order for any theory or case question on waste, water or resources. It keeps your answer in the provision, analysis and conclusion format.

1Identify the issue: waste, EPR, water, circular economy or disclosure.
2State the rule or concept in plain words. Name the Act or rules only if you are sure of them.
3Identify who is covered: producer, importer, brand owner, manufacturer, or the company in general.
4Apply the rule to the facts given, such as product type, quantity, location or current practice.
5Point out the gap or risk: non-compliance, penalty, cost, reputation or water stress.
6Recommend actions: policy, registration, targets, recycler tie-ups, treatment plant, reporting.
7State the role of the board and company secretary, and the BRSR link where it fits.
8Close with a clear one-line conclusion.

Quickest way: Four-line answer frame

When to use it: Use when time is short or the question carries few marks.

Line 1: define the term in one sentence.
Line 2: state who must act and what they must do.
Line 3: give one business example from India.
Line 4: state the benefit or consequence, then the CS role.

Common mistakes in Waste, Water and Resource Management

Treating EPR as a duty of the consumer or municipality only.
Students link waste with local bodies and forget the producer's role.
Fix: Write that EPR places responsibility on the producer, importer or brand owner for post-use waste.
Quoting rule years, targets or percentages from memory.
Students try to look precise.
Fix: State the obligation in words. Give a number only if you are certain of it.
Confusing recycling with the circular economy.
Both involve reuse of materials.
Fix: Say that recycling is one step. A circular economy starts at design and keeps products and materials in use for longer.
Mixing up water withdrawal, consumption and discharge.
The terms sound alike.
Fix: Withdrawal is what you take in. Discharge is what you release. Consumption = withdrawal − discharge.
Giving only general advice with no link to facts.
Students write textbook notes rather than case answers.
Fix: Apply the rule to the facts, then recommend specific actions and a conclusion.
Ignoring the company secretary's role and BRSR disclosure.
The topic feels purely technical.
Fix: Add a line on policy, compliance tracking, board reporting and BRSR disclosure.

Worked examples

Example 1

A packaged-foods company in Pune sells products in plastic packaging across India. Explain its obligations under extended producer responsibility and suggest how the company secretary can help.

Show the solution

Rule: under India's plastic waste rules, producers, importers and brand owners are responsible for the plastic packaging they put on the market.
Application: the company is a brand owner using plastic packaging, so it falls within EPR.
Action: it should register on the official portal, tie up with registered recyclers or processors, and meet its collection and recycling obligations.
Records: it must keep data on the packaging it places on the market and file returns as required.
Risk: failure can lead to environmental compensation and reputation loss.
CS role: maintain a compliance calendar, check registrations and returns, brief the board and support BRSR disclosure.

Answer: The company is a brand owner and is responsible for its post-consumer plastic packaging. It must register, arrange recycling through registered entities, keep records and file returns. The company secretary should track compliance and report to the board.

Example 2

A textile unit withdrew 50,000 kilolitres of water in a year and discharged 32,000 kilolitres after treatment. Its output was 2,00,000 metres of fabric. Find its water consumption and water intensity, and suggest two stewardship actions.

Show the solution

Consumption = withdrawal − discharge.
Consumption = 50,000 − 32,000 = 18,000 kilolitres.
Intensity = consumption ÷ output = 18,000 ÷ 2,00,000.
Intensity = 0.09 kilolitres per metre, which is 90 litres per metre.
Action 1: improve treatment and reuse treated water in processes.
Action 2: set an annual intensity reduction target and track it, with extra care if the site is in a water-stressed area.

Answer: Water consumed is 18,000 kilolitres and intensity is 0.09 kilolitres (90 litres) per metre of fabric. The unit should reuse treated water and set a reduction target.

Exam tips

Use the answer pattern: rule, facts, action, conclusion.
Keep definitions short and learn the contrast between linear and circular models.
Do the arithmetic for water and recycling figures in steps and show units.
Add a BRSR and company secretary line to earn the practical marks.
Avoid naming rules or targets you are unsure of. Describe the duty instead.

Practice questions from Environment

Waste, Water and Resource Management: frequently asked questions

What is extended producer responsibility in simple words?

It means the company that makes, imports or brands a product is also responsible for its waste after use. The company must arrange collection and recycling or proper disposal. This is usually done through registered recyclers and reported on a government portal.

What is a circular economy with an example?

It is a system where products and materials stay in use as long as possible. A company may design reusable packaging, take back used products and recycle them into new ones. This cuts waste and raw material cost.

What is water stewardship in ESG?

It is the responsible management of water use, treatment and sharing, in line with the needs of the business, the community and the environment. It involves measuring use, reducing it, reusing water and protecting local sources.

Which rules govern plastic waste in India?

Plastic waste is governed by rules under the Environment (Protection) Act, 1986, which place duties on producers, importers and brand owners. For the exam, focus on the duties and how EPR works. Check the current text before quoting details.