Richland Soil and Water

Although the office is closed to the public, when it comes to practices that can help keep our water and soil healthy, please turn to us at Richland SWCD. We are more committed than ever to providing you with good, solid information.

The next Board Supervisor meeting will be held Thursday, August  20 at 5:00 p.m. at the Longview Center, 1495 W. Longview Avenue, Suite 205B, Mansfield. If you wish to attend the meeting in person or via video conference, please contact Erica Thomas, District Program Administrator, at 419-747-8684 or prior to the meeting so that enough meeting packets are prepared.  

You may reach us at

Face-to-face stormwater permit approval is temporarily suspended. Stormwater permit applications, checklists and information needed to obtain a stormwater permit are available at

Please submit your stormwater permit application, site calculation form and additional documents via email to or through US Mail by sending to: Richland SWCD, 1495 W. Longview Ave, Suite 205B, Mansfield, OH  44906.

Stormwater permit fees may be paid by check, payable to Richland SWCD and mailed to the Richland SWCD office. 

Agriculture Pollution Abatement concerns may be reported by calling (614) 265-6610.

We appreciate your understanding and patience during this difficult time. Be well!

Sheepsfoot roller for soil compactionCompaction is a very important practice in pond construction, especially when constructing the core trench and dam. Proper compaction is achieved from 3 main components: Soil type, soil moisture and compaction method.

The soil should contain a mixture of all silt, clay and sand to achieve the best compaction. A mixture too high in clay will make it hard to obtain the proper moisture content, become too sticky if too wet and when the soil dries out it can shrink and crack, creating potential leaks. Too much silt and the soil will not compact together at all, it will spread out during compaction rather than building up higher and higher. If a soil has too much sand, it will also not compact, and it will also allow water to move through it too easily.

A good guide to soil moisture content can be obtained from a simple field test. When soil moisture is at the best level for effective compaction, you should be able to roll the soil between your palms into a thread (about the thickness of a pencil) that just begins to crumble on further rolling. If the soil thread crumbles before it reaches pencil thickness, it is too dry. If the thread can be rolled to a thickness much less than a pencil, then it is too wet.

As far as compaction methods are concerned, the soil used to build the core trench and to form the embankment should be placed in 6” layers, with each layer thoroughly compacted before the next layer is placed. A layer of more than 6” of soil before compaction is not recommended. The number of passes that should be made by the compacting equipment depends on the soil type, but it should be at least four. Preferably, compaction should be achieved with a sheepsfoot roller. However, a heavy rubber tired machine or a loaded pan may be satisfactory, depending on the soil behavior and the layer thickness and the ability to compact the entire surface. (Bulldozers do not offer adequate compaction.)