Modern Engineering Solutions

06/17/2026

The wastewater costs in a development pro forma that most developers either underestimate or miss entirely fall into five categories: WWTP construction cost per gallon of design capacity, permit timeline impact on carrying costs, engineering and permitting fees, ongoing monthly operations and maintenance, and permit compliance obligations that continue for the life of the facility.

For a 130,000 GPD development outside municipal sewer service in Texas, the all-in infrastructure cost (construction, engineering, permitting, and year-one operations) routinely runs $3.5 million to $4.5 million. Most pro formas that get to closing without a utility feasibility study have none of that number in the model.

MES works with Texas developers to produce accurate wastewater infrastructure cost estimates, permitting timeline analysis, and operations cost projections for development pro formas and lender underwriting packages.

Read the full article: https://mod-eng.com/how-wastewater-infrastructure-affects-your-pro-forma/

A 130,000 GPD private WWTP in Texas costs $3.5M to $4.5M all-in. Most pro formas miss permit timeline carrying costs, O&M, and compliance obligations.

06/03/2026

TCEQ permit approvals stall for predictable reasons: incomplete water balance studies, inadequate site characterization, unsupported flow projections, and missing documentation that the reviewer needs to make a determination. None of these are random. They are all avoidable with a complete, well-prepared submittal.

MES has secured 210E approvals in 4 to 10 weeks during TCEQ’s busiest periods not because Texas Commission on Environmental Quality moved faster for us, but because our applications arrived complete the first time, addressed the reviewer’s known questions before they asked them, and did not require a deficiency notice cycle to move forward.

https://mod-eng.com/how-to-work-with-tceq-reviewers-what-slows-approvals-and-what-speeds-them-up/

Most TCEQ delays are preventable. Complete applications and responsive deficiency answers determine whether permits take 4 weeks or 24 months.

05/22/2026

Most firms have not changed how engineering work gets done in 20 years.

At MES, AI is not a buzzword on a slide deck. It is built into how our PEs produce deliverables every day, and it is a direct reason why our engineers spend more time doing engineering and less time on administrative production work.

The goal is not to replace engineering judgment. It is to eliminate the hours that should never have required a PE in the first place.

The firms that figure this out first will be cheaper to operate and harder to compete with within 24 months.

Over 300 projects completed across 9 states. Every one led by a PE with full ownership of the outcome.
This is not about a better salary package. It is about doing the work your license was earned for, and being compensated at the time you do it.

If you have your PE license and you are not leading projects, that is not a you problem. It is a structure problem. Structure is something you can change.

How we use AI to give PEs their time back.

Connect with us to help change our environment through modern engineering.

05/21/2026

Why So Many RO Systems Underperform Within 2 Years of Installation

An RO system that underperforms two years after installation is rarely a membrane problem. The membrane is usually fine. The source water evaluation that happened before the system was designed is where things went wrong.

This comes up more than most utilities expect. A water system invests in reverse osmosis treatment, gets through construction, and within a couple of years the system is not hitting performance targets. Recovery rates lower than projected. Energy costs higher than budgeted.

Concentrate management becoming a problem nobody planned for.

The membrane did not cause any of that. The assumptions going into the design did.

RO systems are sensitive to source water in ways that a general treatment evaluation will not catch. Hardness that varies seasonally. Organics that foul membranes faster than the recovery rate projections assumed. Iron and manganese concentrations that were measured once during due diligence and treated as a fixed number when they are anything but fixed.

When we design a reverse osmosis or nanofiltration system at MES the evaluation starts with the source water, not the equipment catalog.

→ Source water analysis covering hardness, organics, iron, manganese, turbidity, and contaminants of concern before a single piece of equipment gets specified
→ Recovery rates, concentrate management, and energy use looked at together as a system, not as separate line items that get optimized independently
→ Post-treatment stabilization designed from the start because RO permeate without proper stabilization creates its own problems in the distribution system
→ Technology selection based on performance, cost, and operational fit for that specific source water, not on vendor relationships or what worked on the last job
→ Systems designed so operators can actually manage them day to day without needing a specialist every time something changes

An RO system that runs well for 20 years and one that struggles within two years often started with the same membrane specification. What happened before that specification was written is where they went different directions.

If your water system is evaluating RO treatment or dealing with a system that is not performing the way it should, what has been the hardest source water characteristic to account for?

05/11/2026

Most Texas MUD developers are leaving $3M or more on the table on every single project. And most of them don't realize it until the infrastructure bill comes in.

Here is how the math works on a typical 550 lot community with homes in the $320,000 to $425,000 range.

Your maximum MUD reimbursement is capped at 10.5% of total home values. On that community that ceiling is $20.4 million.

But the average MUD utility build on a project like that runs $26 to $28 million.

That is a $6M gap sitting right there before you have even looked at ways to close it.

Traditional water and wastewater infrastructure alone on that project is going to cost around $6.5 million. That is the line item we focus on first.

At MES https://lnkd.in/eWVKd6WW, we partner with groups like Flow Utility to bring a turnkey design and wholesale utility model to this problem. They own and operate the facility for the MUD and take on the risk. What that does to the infrastructure cost is significant.

That $6.5 million plan comes down to $2.9 million. That is a 55% reduction.

The $3.5 million that does not get spent is money that stays in the MUD's pocket instead of being fronted by the developer. The developer collects their reimbursements, exits the MUD with zero ongoing expenses, and moves on.

This works best if you are building entry level communities in the $300,000 to $500,000 home range, 100 plus lots, somewhere in DFW, Houston, Austin, or San Antonio.

If that sounds like your project, send me your lot count, acreage, anticipated home price, and where you are in the MUD setup process. We will run a free feasibility analysis and tell you straight whether this model makes sense for your numbers.

What part of the MUD infrastructure cost has been the hardest line item to get under control on your projects?

05/06/2026

Most lift station problems we see were not maintenance failures. They were design decisions that nobody questioned until something stopped working.

The conversation usually starts the same way. A municipality is dealing with a station that needs constant attention. Pumps cycling too fast. Wet well not holding. Operators spending time on a station that should be running quietly in the background.

When we ask to see the original design the answer is usually in the first few pages.

The sizing decisions that cause the most grief in the field are not complicated. Someone made assumptions that seemed reasonable at the time and nobody went back to check them against how the system actually operates.

Here is what we look at when we design a lift station:

→ Actual upstream flow data, not just design standard defaults that have never been verified against the real system
→ Wet well volume sized around real pump cycle times so the pumps are not short cycling and burning themselves out ahead of schedule
→ Pump selection based on actual system head conditions, not catalog curves that were reviewed in an office without field data behind them
→ Redundancy built in from day one so a single failure does not take the whole station offline at 2am on a Saturday
→ Control systems and equipment specified with the operators in mind, the people who will actually maintain it every day, not just the engineer who designed it and moved on

None of this is complicated engineering. It is just doing the work properly the first time instead of leaving the municipality to figure out the problems later.

At Modern Engineering SolutionsMES lift station design is not a secondary service. We have designed stations at Florissant in Colorado, Prairie Corner, and City Limits RV Park.

Every one of them built around the same priorities. Redundancy.

Maintainability. Long term reliable operation.

A lift station that fails at 2am on a Saturday is a real problem for real operators in a real community. Getting the sizing right from the start is the job.

If your municipality is dealing with a lift station that needs more attention than it should, what is the issue that keeps coming back?

05/05/2026

Why do your best engineers leave at year 3?

It's not about the money. It's about growth they're not getting.

I keep seeing this pattern: talented engineers at established firms, restless around year 3. Not because compensation is lacking—because the work stopped challenging them 18 months ago.

Here's what they're trading while they wait for equity to vest:

→ Projects that would actually stretch their capabilities
→ Autonomy to make real engineering decisions
→ Leaders who push them to innovate, not play it safe
→ Infrastructure work that impacts communities they care about

Then they find an opportunity where innovation isn't just encouraged, it's expected. Where they'd have real ownership from day one. Where their expertise would grow exponentially.

And they stay put. Not because they're thriving—because leaving costs too much.

But here's what I've learned: careers compound faster than equity. Every year you're not growing is a year you can't get back.

The engineering firms attracting top talent today aren't the ones with the fanciest vesting schedules. They're the ones where:

✓ Growth starts on day one
✓ Ownership isn't deferred for years
✓ Autonomy comes with the role
✓ Innovation is how they operate

📊 Swipe through the carousel to see the full breakdown.

What made you leave your last engineering role, or what would it take to make you consider leaving your current one?

Drop your thoughts in the comments 👇

04/24/2026

PEs at MES apply the engineering judgment.

AI drafts the narrative sections of PERs, feasibility studies, and drainage reports from structured inputs.

First draft in minutes, not days. That is not the future. That is how we work today.

04/21/2026

$50,000 to $200,000 per month. That's what carrying land costs a mid-size Texas commercial developer while waiting on permits.

TCEQ discharge permit timelines have stretched from an average of 12 months to 24 to 36 months across most Texas jurisdictions.

For a developer eight months into carrying costs on a 130,000 GPD project, facing another 12-month wait, that math stops working.

The wastewater reuse conversation isn't about sustainability anymore. It's about whether your financing structure can survive the permitting timeline.

Here's what reuse-based authorizations eliminate from TCEQ review:

→ Receiving water dilution analysis
→ Anti-degradation review process
→ Downstream aquatic impact assessment
→ Public hearing exposure in most cases

Removing those steps is what compresses timelines. MES has obtained 210E authorizations in four to ten weeks during TCEQ's peak review periods, compared to 24 to 36 months for a discharge permit on the same site.

The engineering rigor stays the same. The review scope narrows. Narrower scope means fewer revision cycles and faster approvals.

One qualifier most developers overlook: if your project includes any industrial wastewater component (data center cooling, batch plant operations, manufacturing tenants), even at as little as ten percent of total volume, you likely qualify for the 210E fast-track option.

That distinction should inform site acquisition pricing and financing structure, not follow the deal.

The Montgomery County developer who made the switch? His wastewater infrastructure now supplies treated water to other users in the corridor. The disposal cost became an operational asset.

Full breakdown of TLAP, 210E, and Chapter 210 pathways (link in comments).
When does wastewater strategy hit your project timeline, during due diligence or after contracts are signed?