Water Data

Water tracking is organised by flow, sources, intake, storage, consumption and reuse each get their own tab, all feeding one balance calculation.

The three top-level tabs

Analyses is your list of analyses. Summary rolls every calculated analysis up into totals across intake, consumption and reuse. Charts is the visual view. There is no separate Scenario Analysis tab in Water, unlike Waste.

The eight tabs inside an analysis

  • Dashboard

    The overview: status, key totals, and intensity by category, once calculated.

  • Sources

    The named water sources this analysis draws from.

  • Intake

    Water drawn in.

  • Discharge

    Water leaving the site as effluent, by destination and treatment level.

  • Storage

    Site storage units and their opening/closing inventory.

  • Consumption

    Water used and not returned.

  • Reuse

    Water recycled or reused on site.

  • Balance & Intensity

    The final calculated result.

Sources, first

Before recording intake, add at least one water source: a name, a source type (Municipal, Groundwater, Surface Water, Rainwater Harvested, Recycled Purchased, Trucked/Tanker, Seawater, or Other), and an entry type. Intake records reference a source from this list, so it's worth setting up first.

Intake: metered vs estimated

The Add Intake Record form changes shape depending on your Entry Method:

  1. 1

    Metered or Manual Reading

    Enter an Opening Reading and a Closing Reading, plus a meter unit. Slate computes the volume from the difference.

  2. 2

    Estimated, Invoice Based, or Calculated

    Enter a single Volume figure directly, no readings.

  3. 3

    Estimated specifically

    Also requires Estimation Notes describing how you arrived at the figure, so the estimate isn't just a bare number with no context.

Every intake record also needs a Water Source and a Date.

Discharge

Discharge records water leaving the site as effluent. Each record has a destination (surface water, groundwater, municipal sewer or third-party treatment, sea outfall, land application, off-site treatment, or other), a date, an entry method that works like intake (metered readings, or a volume), a treatment level (none, primary, secondary, tertiary or advanced) and a quality classification, with optional measured TDS in mg/L.

Note

Discharge is optional, but worth entering. When you record it, Slate compares the consumption you entered with what intake, storage, reuse and discharge imply, and flags a disagreement beyond your tolerance, instead of trusting one number on its own. Quality defaults to “unknown” rather than assuming freshwater.

Storage

Add Storage Unit lets you name a tank, pond, reservoir, aquifer or other storage type, set its capacity and water type (raw, treated, process, recycled, fire water), and optionally record an initial opening/closing inventory reading right when you create it.

Consumption

Each consumption record has a use category (Industrial Process, Cooling, Steam/Boiler, Irrigation, Building & Sanitary, HVAC, Fire Suppression, Dust Suppression, Vehicle Washing, or Other), a volume, and optionally a production volume and unit. That production figure is what feeds the intensity calculation, without it, that record can't contribute to a water-intensity figure.

Reuse

Each reuse record has a source stream (Treated Effluent, Condensate Recovery, Stormwater Harvested, Greywater, Process Blowdown, or Other), a volume, and optionally which process received the reused water and what treatment was applied.

Calculating the balance

Click Run Calculation on the analysis header. The confirmation dialog explains what happens: every intake, consumption, reuse and storage record gets aggregated, existing balance results are overwritten, and the output follows a GRI 303-aligned water balance structure. Once it finishes, the active tab automatically switches to Balance & Intensity so you land straight on the result.

Reading Balance & Intensity

A status banner reads Balanced, Review Required, or Incomplete, alongside the actual difference and your analysis's tolerance. Below that, a “Water Balance Formula” card lays out every term (Total Intake, Opening Storage, Total Reuse, Available Water, Total Consumption, Closing Storage, Balance Difference) so the number isn't a black box.

Note

Review Required is a prompt to double-check your inputs, not necessarily a mistake. If every consumption record shares one production unit, you'll also see a site-level water intensity figure and a per-category breakdown, mixed units across records blank that out rather than quietly averaging incompatible numbers.