Sewagex.com/i/grok

We are a Human Rights Group but we have grave concerns about this Harare Ground Water survey tool as publicise by the UK Ambassador. 

Given  the sewage infrastructure crisis in Harare and its known effects upon public health - such a tool - we presume - will not be able to divine potable water - as the article implies. 

In addition, questions also need to be asked regarding Harare’s existing water supply infrastructure  and its current efficacy.

GROK text reply - web research items within the link above

"The Harare Groundwater Assessment Tool" is a real UK-funded initiative, publicly highlighted by the British Embassy in Zimbabwe (via @UKinZimbabwe on X today, 10 March 2026, and earlier Facebook posts). It was developed in partnership with the "University of Zimbabwe, the "Upper Manyame Sub-Catchment Council", and the "British Geological Survey (BGS). 

It is explicitly described as "Harare’s first Groundwater Assessment Tool" — a GIS-based modelling and mapping system (pilot study funded via UKRI) for evaluating groundwater resources. Official messaging calls it “a big step toward better water management and a more resilient future for the city” and “supporting sustainable water solutions.” It is an assessment and planning tool, not a water-finding or purification device.

Your core concern — that "Harare’s catastrophic sewage infrastructure failure" makes groundwater non-potable — is factually well-founded and widely documented by independent experts, residents, and recent studies.

Why groundwater in Harare is highly vulnerable

Harare’s sewer network (≈5,000 km of ageing pipes, much of it asbestos and obsolete) has been collapsing for years. Burst and leaking sewers are the **primary source of groundwater contamination**, leaching raw sewage, E. coli, nitrates, and other pollutants directly into aquifers.

- Over 35,000 registered boreholes (plus tens of thousands unregistered) have mushroomed because of piped-water shortages; experts from the Upper Manyame Sub-Catchment Council and Community Water Alliance describe this as “over-extraction” that concentrates pollution risks.

- A 2024 Natural Environment Research Council analysis of 21 Harare boreholes found “troubling levels of contaminants.” 2025 peer-reviewed studies confirm periodic E. coli detection in boreholes (especially in suburbs like Budiriro and Kuwadzana), elevated nitrates, and seasonal spikes linked to sewer leaks and wet-season runoff.

- Historical cholera hotspots (2008–09 and later outbreaks) are now reliant on the very groundwater that the failing sewers continue to pollute.

The new BGS assessment tool may actually help by mapping aquifer vulnerability, recharge zones, and pollution pathways — but it cannot make contaminated water safe. Any groundwater development would still require rigorous testing, treatment, and protection from ongoing sewage infiltration.

Harare’s existing water supply infrastructure
The situation is dire and openly admitted by city leadership:

- Primary source: "Lake Chivero" (via Mukuvisi River), ranked among the world’s 10 most-polluted lakes. The city has discharged raw and semi-treated sewage into it for years; the lake has lost 10 metres of depth to sediment and cyanobacteria blooms. In December 2024 alone, four rhinos and thousands of fish died from the pollution.

- Treatment plants are overwhelmed; the city spends US$2.5–3 million monthly on purification that residents describe as ineffective (tap water often green, foul-smelling, and available only every 3–4 days).

- Non-revenue water loss is ≈60% (leaks + illegal connections). Mayor Jacob Mafume has publicly stated the council has “dismally failed” and appealed directly to President Mnangagwa for intervention.

- Government’s own 2026–2030 Lake Chivero Pollution Mitigation Plan acknowledges “critical ecological failure” and calls for >US$80 million in urgent sewer and treatment-plant repairs.

In short, both surface-water and groundwater sources are compromised by the *same root cause*: decades of under-investment in sewage and water reticulation infrastructure.

Bottom line for human-rights and public-health perspectives

Your scepticism is justified. A modelling tool for groundwater assessment is a useful data layer for long-term planning, but it does not and cannot substitute for fixing the sewage crisis.

Without massive, verifiable upgrades to Harare’s sanitation infrastructure, any new groundwater sources will carry the same contamination risks that already force residents to buy unsafe borehole water or spend large portions of income on purification and alternatives.

If your group is preparing advocacy, submissions, or FOI requests, the Embassy/BGS project documentation, Upper Manyame Sub-Catchment Council reports, and the 2025 scientific papers on borehole quality are all publicly referenceable.

The fundamental human-rights issue remains access to safe, reliable water — and that requires infrastructure repair far beyond any assessment tool.