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IHS Mission & Goals:
Groom Skills,
Gather Evidence and
Generate Knowledge for people's health.

To Improve the Efficacy,
Quality & Equity
of Health Systems.

 

      

 Institutional-Campus Water Quality Monitoring.

     


Institutions and their campuses face a special challenge in ensuring water safety for their residents and visitors. Hospitals, for example, have to maintain elaborate water storage and distribution system with various point-of-use and/or point-of-entry water treatment facilities to supply drinking water to patients and attendants and meet for other medical uses such as for dialysis, sterilization units, operation theatres and general use in wards and outpatient departments. Acceptable chemical profile and bacteriological purity is important for hand wash and many other uses in hospitals. Similarly, in case training, research and educational institutions, potability of water supplied in campus is critical for health of the trainees, guests and in-campus residents. These moderately complex water storage, distribution and point-of-use treatment systems need regular monitoring to identify developing vulnerabilities, if any, for timely preventive measures.

To establish a tailormade water quality monitoring system for an institution, the IHS first takes up a sanitary survey of their water supply system to identify and map various components including sources (municipal supply and/or groundwater), sumps, overhead tanks, distribution system, point-of-use (POU) water treatment units, drinking water dispensing points, etc. Critical components of water sourcing, storage and distribution system are inspected. Based on a risk analysis of the system, and criticality of institutional operations, a water quality monitoring plan, including testing cycle, sampling plan, and periodical sanitary survey of the sumps, rooftop tanks, and borewell heads, etc. is proposed.

For example; the following table shows sample of a water quality monitoring plan for a 100-bedded nonprofit general hospital with dialysis services. This hospital sources municipal water through a 40 mm diameter pipe, supplemented by four borewells. There are five sumps. A RO plant delivers water for dialysis. About six POU units, located in various floors, deliver drinking water to patients and attendants.

Table 2: Monthly Water Quality Monitoring Plan for a Hospital Campus
SI

Designated Use /Source

Source / Sampling

Bi-Annual Benchmark Tests

Monthly Monitoring
Test Code Qty Test Code Qty
1 Dialysis Water Borewell-1 (Feeder) GPT 1 BPT 1
RO Plant Output GPT 1 GPT 1
2

Drinking /

Municipal Water

 

Sumps - 1&3 CPT 2 BPT 1
POU water treatment units BPT 1 BPT 1
3 General General Use Taps BPT 1 BPT 1
4 Sample Collection Service 6 5
Total 12 10

Notes:

BPT: Basic potability test: designed to test for general characteristics, and a few chemical parameters (hardness, which is an indicator of mineral content) and microbial quality

CPT: Complete potability tests designed to test for general characteristics, and more chemical parameters (Alkalinity,chloride   and sulphates and microbial quality.

GPT: Groundwater potability tests designed to test for a larger set of chemical parameters, in addition to general and microbial characteristics for testing.

Biannual benchmark tests should be done in April & October.

Monthly monitoring tests in other months. BPT samples from POU units shall be rotated to cover each unit at least once during a semester.

BPT samples from General Use Taps shall be rotated to cover at least one tap from each floor / service area during a semester.

 


Similarly, a periodical sanitary survey plan shows for various types of campuses may look like the following:
Table 3: Illustrative Annual Sanitary Survey Plan for a Hospital Campus
Sl Description Scope
1

Annual Sanitay Survey

Inspect sumps, rooftop tanks, borewells, water dispensors and usage areas. Identify actionable issues to protect water quality and improve sanitary conditions.

2 Annual Followup Sanitary Survey

Check for rectifications and follow-up action on Annual Sanitation Survey. Report extent of compliance and persistent actionable issues needing attention.



------------23 Aug, 2021------------

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