Water resources consulting · Great Lakes communities
Data centers, battery plants and other large facilities. We help townships, utilities and engineering firms understand what a proposed facility means for water supply, wastewater, groundwater, streams and water quality, and which conditions keep the risk in check. Funded through the applicant's review escrow; directed by the community.
Where we fit
A large data center touches several approvals, each owned by a different body and each looking at one slice. Our assessment brings the slices together before commitments are made.
| Decision | Who decides | What it usually covers |
|---|---|---|
| Rezoning, special land use, site plan | Township board, planning commission | Land use, noise, traffic; water often reduced to "utility can serve" |
| Water service or wholesale capacity | Local utility and its wholesale supplier | Whether the request fits contracts and plant capacity |
| Large-quantity withdrawal | EGLE (Michigan Part 327); groundwater districts (Texas) | Registration at 100,000 gal/day, stream screening, permits above 2 MGD in Michigan |
| Cooling water discharge | Sewer utility; EGLE or TCEQ for direct discharges | Flow and chemistry against plant and stream limits |
| Wetlands, floodplain, stormwater | EGLE, county drain and soil erosion offices | Site-level permits, not cumulative watershed effects |
| Moratorium and ordinance standards | Township board | What thresholds and reporting to require from future applicants |
Rules are changing quickly. More than 50 Michigan communities have adopted moratoria, new ordinances let townships hire consultants to review an applicant's water use at the applicant's expense, and Lansing has bills pending on water reporting and cooling. A consistent, documented assessment is what decision-makers can stand behind.
Services
Fixed-fee proposals with a written scope. Every engagement ends with a plain-language summary a board or council can use.
An independent review of the applicant's water and stormwater submission, as consultant-review clauses provide for. Or, before anything is submitted, a fast look at what a proposal of that kind would mean for your system and watershed.
The full study, using utility records and applicant disclosures, with recommended conditions for the approval or service agreement.
Turns a moratorium into standards: water-use thresholds, required disclosures, an independent-review clause funded by the applicant, and standard conditions for future applicants.
Data center water demand, groundwater, discharge and load modeling delivered inside your project, under your seal and your client relationship.
What an assessment covers
Every assessment runs the same five scenarios, from existing conditions to a reasonable worst case and the cumulative picture, so boards can read results the same way from town to town.
On the hottest day, does demand stay within the contract, storage and plant capacity?
Can the plant take the added flow and the cooling blowdown chemistry?
Drawdown at neighboring wells and depletion of nearby streams.
Design-storm peaks and the detention needed to hold them to today's rates.
Sediment, phosphorus, E. coli and road salt, and what the site means for the creek's cleanup plan.
Caps, phasing, monitoring and reporting that manage the risk.
Sample report contents
How we work
Each assessment starts from our statewide water data platform: well records, stream flows, discharge permits, impaired waters, utility systems and tracked proposals.
Where records are missing, we state the assumption, explain why it is reasonable and show how the answer changes if it is wrong.
Because the data and methods are already assembled, the time goes into judgment and review instead of collection.
Pipe-level hydraulics, storage, fire flow and sealed work stay with your township engineer or our licensed engineering partner. We bring the hydrology and water quality.
The community selects us and directs the work; the applicant pays through the zoning review escrow, the same way traffic and noise studies are funded.
Public resource
Our free tool for residents, officials and reporters: what a data center of a given size and cooling design could mean for local water, plus a tracker of Michigan proposals.
About
Northline Hydrology is led by Andrew Sommerlot, PhD, principal hydrologist: watershed hydrology and water quality modeling (SWAT), former EPA nonpoint source program work, and years building data platforms. Based in Michigan.
Our work is planning-level hydrologic and water quality analysis. We do not provide engineering design. Pipe-level hydraulics, fire flow and sealed deliverables are delivered with a licensed engineering partner.
Contact
Tell us the community, the proposal and the decision you face. We reply with a short scope and a fixed fee.
andrew@northlinehydrology.com