If you've moved to Porter or New Caney from inside Houston, there's a question about your house you may never have had to ask before: where does the wastewater actually go?
In a city, it goes into a municipal sewer main and that's the end of it. Out here it depends entirely on where your property line falls, and the answer changes what's wrong when things stop draining.
Neither Porter nor New Caney is a city
Both are unincorporated communities in Montgomery County. There's no city hall, no municipal utility department, and no single answer about water and sewer service.
Some of the area is served by municipal utility districts — New Caney MUD covers part of it, East Montgomery County MUD No. 6 sits a few miles north, and newer master-planned developments frequently have districts of their own. Outside those boundaries, properties are on private wells with septic systems in the yard.
Two houses a few minutes apart can be on completely different arrangements. It's worth knowing which you have before anything goes wrong, rather than finding out at 9pm on a Saturday.
How to tell what you're on
You're probably on septic if there's a lid or riser in the yard, a small treatment unit with an electrical box and an audible pump or blower, or sprinkler heads that run at odd hours without an irrigation controller. Aerobic systems distribute treated effluent through sprinklers, which surprises new owners who assume it's lawn irrigation.
You're probably on a MUD sewer if you receive a district bill covering water and sewer, and there's nothing in the yard but a cleanout.
If you're genuinely unsure, your closing documents or a call to the district will settle it, and any plumber worth calling will check before quoting.
Why aerobic systems are so common here
Montgomery County soil conditions often make a conventional septic system — a tank and a gravity drain field — unfeasible on a given lot. Where the soil type or lot size won't support one, an aerobic treatment unit is used instead: it treats the effluent more actively and distributes it via sprinklers rather than relying on the ground to do the work.
That's why so many properties around Porter, New Caney, Roman Forest and out toward Cut and Shoot have them. They work well. They also have moving parts, need periodic servicing, and require permitting through Montgomery County Environmental Health — which requires a site evaluation including a soil analysis by a registered site evaluator before a permit is issued.
Why this changes the diagnosis
Here's the practical point.
In a subdivision on a sewer main, a whole-house backup almost always means the sewer line: a clog, roots at a joint, a belly, or a collapsed section. Camera the line, find it, fix it.
On a septic system, the line running from the house to the tank can be in perfect condition while the actual problem is the tank being full, a failed pump, a saturated drain field, or a treatment unit that's stopped working. Cleaning the line in that situation achieves nothing, and replacing it achieves nothing expensively.
So on any septic property we camera the line to establish whether it's genuinely the problem — and where it isn't, we say so. What you need at that point is a septic contractor, not more pipe work. We'd rather tell you that than take the job.
Warning signs specific to septic
- Sewage odour in the yard, particularly near the tank or the sprinkler area
- Grass that's noticeably greener, wetter or spongier over the drain field
- Multiple fixtures backing up at once, starting with the lowest in the house
- Gurgling from drains when the washing machine empties
- An alarm on the treatment unit — often a light or buzzer on the control box that people mute and forget
That last one is worth repeating. The alarm exists to tell you the system needs attention before it backs up into the house.
What helps, on either system
Keep grease out of the drains — it's the single most common cause of kitchen line blockages regardless of what happens downstream. Skip caustic drain chemicals; on a septic system they're also hard on the bacteria doing the work. Know where your cleanout is. And if you're on aerobic, don't ignore the alarm.
Not sure what you've got?
Call (832) 885-9820 and describe what's happening. We're based in Porter, we work New Caney and the surrounding area daily, and there's no service fee to come out and establish what you're actually dealing with — including when the honest answer is that you need someone else.