Sewage in the yard or a sewer smell outside
Short answer
Keep people and pets away and stop using water. Look, without opening anything, for a round lid with a grey electrical box nearby (a grinder station) and a capped pipe near the house (the cleanout). Sewage at the lid is a grinder call. An overflowing cleanout or wet line toward the street is a service line problem.
A sewage smell outside the house, or sewage coming up in the yard, comes from one of three places: the sewer service line between the house and the street (a clog or a break), the outside cleanout overflowing because of a clog downstream of it, or a grinder pump station that has reached its limit. Baldwin County Sewer Service's user tips say the usual cause of sewage in a yard is a service line that is clogged or broken, and that the outside cleanout is the first place to look.
This page is for people who are not sure what they have. It tells a grinder basin from a gravity line, says what to look at without touching anything, and points each case to the right kind of help.
Safe steps, in order
Nothing here opens the panel or the basin. If a step does not clear it, stop and make the call.
Step 1: Keep clear and stop the water
Raw sewage on the ground is a health hazard. Keep children and pets off it. Stop using water inside; every gallon adds to what is surfacing.
Step 2: Find out whether you have a grinder pump
Look for a round lid, usually green or black, flush with the lawn, and a grey or beige electrical box on a post or the house wall with a red light on top. That is a grinder station. No lid and no box usually means a gravity sewer or septic. Our lookup tool tells you which utilities in Baldwin and Mobile counties use grinder pumps.
Step 3: Look at the cleanout, do not open it
BCSS's tip is to check the outside cleanout, the capped pipe sticking up near the foundation. If sewage is coming out of it or pooling around it, the blockage is between the cleanout and the street. Leave the cap on; removing it under pressure sends sewage into the yard.
Step 4: Call the right person
Sewage at a grinder lid, or a grinder panel lit: on BCSS or Gulf Shores Utilities call the utility first, then us. A wet line toward the street with no grinder: your sewer utility first, to rule out a main problem, then a general plumber for the service line. Sewage ejector and lift station cases come to us too.
Possible sources
The utility guidance and owner guides describe several ways sewage can reach a yard.
- A clog in the sewer service line, overflowing at the cleanout or at the lowest joint. BCSS: usually a clog or break in the service line. Roots, grease and wipes are the usual culprits on gravity lines.
- A break in the service line, showing as a wet, green, smelly strip along the line's route, often after digging or settlement.
- A grinder basin at capacity: sewage at the lid, which BCSS notes overflows from its lid vent when power is out, with the panel light on. The grinder backing up page takes it from here.
- A broken grinder discharge pipe, which surfaces pressurized sewage along the pipe route toward the street. E-One treats wet ground at the unit or pipe in dry weather as a reason for a service call, and allows turning off pump power in this one case.
- A sewer main problem on the utility's side, which usually shows at a manhole or several yards at once and is the utility's to fix.
- A septic drain field failure, on homes not connected to sewer, which is septic work rather than ours.
Whose line is it?
BCSS assigns private sewer service lines to the property owner. Gulf Shores Utilities requires customers to maintain their grinder systems, and MAWSS has separate rules for decentralized stations it maintains. When the source could be a public main or utility-maintained equipment, call your sewer utility to locate the boundary before arranging repairs.
After heavy rain or flooding
Storms push the water table up and fill gravity lines and basins faster than they drain, so sewage in the yard after rain is common and not always a break. BCSS advises shutting off the pump during flooding on its system. Keep away from floodwater and wet electrical equipment. Ask your utility how to handle power if you cannot reach a dry, safe breaker. Follow your utility's instruction for your station, and once the water recedes, have the basin and line checked for what got in.
What we check
Which system the home has; the grinder basin level, panel and discharge line if there is a station; the ejector basin if the sewage is inside a garage or addition; the cleanout and the service line with a camera where the problem is a gravity line to a grinder; and whether the surfacing point matches the line route, the basin or the main. If it is a gravity sewer service line with no pump involved, we say so and point you to a drain and sewer plumber.
When it is an emergency
Sewage flowing rather than seeping, sewage inside the house, or a grinder panel with any sign of burning: stop all water and call now. A faint smell and a damp patch is a prompt visit, and a good day to stop and look at the cleanout and the lid before it becomes the flowing kind.
Still not right? Ask from here
Your name, a way to reach you and what the pump is doing. That is all we need to start. Town and utility are optional.
Sewage backing up or overflowing? Stop using water and call now: (251) 850-8031. On a utility-owned pump, call your utility first.
Questions people ask
Why does it smell like sewage outside my house?
A sewer service line clog or break, a cleanout overflowing, a grinder station at its limit or with a broken discharge pipe, or a plumbing vent that terminates near where you stand. Look for wet ground, an overflowing cleanout cap, or a lit grinder panel; those point at the source.
Sewage is coming up in my yard. Who do I call?
If there is a grinder lid or panel involved, your utility first where it asks (BCSS, Gulf Shores Utilities), then us. If there is no pump and the cleanout is overflowing, your sewer utility to rule out the main, then a plumber for the service line.
Is sewage in the yard dangerous?
Yes. Keep children and pets away, do not walk it into the house, and do not try to wash it into a ditch or storm drain. Once the source is fixed, the area needs cleaning and the ground time to dry.
How do I know if I have a grinder pump?
A round lid flush with the lawn and an electrical box with a red light nearby. Homes on Baldwin County Sewer Service, Gulf Shores Utilities, parts of MAWSS and several other local utilities use them. The who-owns-my-pump lookup lists each utility and its rule.
Sources and facts
- BCSS User Tips: sewage in the yard usually means a clog or break in the service line; check the outside cleanout; a grinder basin overflows from its lid vent when power is out; during flooding turn the pump breaker off until flooding subsides. BCSS User Tips, www.baldwincountysewer.com/… (read 2026-11-04)
- BCSS FAQ: BCSS is not responsible for pump systems and sewer service lines on private property; alarm over 15 minutes, contact BCSS or a plumber. BCSS Grinder Pump FAQs, www.baldwincountysewer.com/… (read 2026-11-04)
- MAWSS FAQ: customer obtains, installs and maintains the grinder pump; MAWSS keeps no records of lines beyond the meter/cleanout. MAWSS Service and Support FAQs, www.mawss.com/residential/service-support-faqs (read 2026-11-04)
- GSU grinder specs: applicant shall provide, construct, operate and maintain a sewage grinder pump system. GSU grinder pump page: contact the Board any time the red light is on. Gulf Shores Utilities grinder specifications, www.gulfshoresutilities.com/grinder-specs; Gulf Shores Utilities grinder pump page, www.gulfshoresutilities.com/grinder-pump (read 2026-11-04)
- E-One owners guide p.6: wet spots around unit or pipe without recent rain warrant a service call; p.4, p.6: broken discharge pipe is the only case for turning off pump power; user instructions p.15: do not disconnect power to the unit. E/One Owners Guide (LM000403 Rev G), eone.com/…; E/One DH071 Installation Instructions incl. User Instructions (NA0061P01 Rev H), eone.com/… (read 2026-11-04)