---
title: "Assess"
method: GET
path: "/api/v1/cross/virtual-pump-test/assess"
tags: ["VQ Instruments"]
---

# Assess

`GET /api/v1/cross/virtual-pump-test/assess`

## Request

- Base URL: `https://www.deepmapai.com`
- URL: `https://www.deepmapai.com/api/v1/cross/virtual-pump-test/assess`
- Auth: none declared

Per-site Virtual Pump Test assessment (cached inversion).

Barometric efficiency is the robust primary output; the tidal-derived
hydraulic properties are honest-null-gated on the M2 head response
clearing the ~0.5 mm resolution floor (vpt_tidal_resolved).

2026-10-12: specific storage and the M2 strain sensitivity are on the
TEXTBOOK VOLUMETRIC-strain basis, Poisson ratio nu = 0.25 assumed
(build_vpt_public_features); before this date specific storage was
overstated about 3.2x. The key m2_areal_strain_sensitivity_m_per_strain
keeps its name but is per volumetric strain. Transmissivity and
diffusivity are withheld (null) -- withdrawn 2026-08-22. A barometric
efficiency outside (0, 1.2] is null with a note.

## Query parameters

- `lat` number
- `lon` number
- `x_api_key` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/deepmapai/apis/deepmap-ai.md) · [All operations](https://skmtc.dev/deepmapai/apis/deepmap-ai/llms.txt) · [OpenAPI document](https://skmtc.dev/deepmapai/apis/deepmap-ai/revisions/dab995d977d0?raw)