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Across 1. Large stone used to line drainage swales. Reduces erosion by slowing water flow. 5. Addition of new hardscape or structures may ________ the amount of water exiting a site. 7. Is it best to RETAIN water or GET RID of it all into the storm drains? 10. You should never use this as a swale. 13. A sticky substance used in erosion control applications. 15. One of the three most critical considerations in landscape construction. 16. Also known as drop inlet. This is a simple drain type, where water enters directly through a grate and into the drain-pipe system, without a spot for sediment collection. 19. A pit of gravel into which drainage water is directed. 20. A tool used to measure an area of random shapes on architectural or engineering drawings. 21. Straw, woodchips, and shredded wood are common ________ materials used to control erosion. 22. According to Dan, this is the minimum percentage you should slope your drain pipe.(Some books say 0.2 %) 23. In construction documents, NIC stands for ________ _______ ________. 27. FG signifies ______ ______ on a landscape construction plan. 29. Item used to catch water in an area that is gradually sloped in one direction or plane. Connects to sewer and drain pipe fittings. Good for hardscape perimeters. 31. One of the three most critical considerations in landscape construction. 33. A newer type of hydromulch providing a papier-mache-like coating. 36. This is the best method of attaching drain pipes together whereby the bell-end of a pipe should face uphill when connected to another pipe. 39. A water capture element having a sump in the bottom of the inlet to collect debris and sediment that fall into the inlet. 40. Allows water to be diverted and released away from where it's captured. Hydrostatic pressure opens spring-loaded lid of this item. 41. The removal of soil from a site due to the action of water and wind. 42. Known as the 360 rule, if you have 360 degrees worth of bends in your drain pipe system, you should have at least one _______.

Down 2. The lowest level of a pipe, at a specific point along its run, is known as the pipe _______ elevation. 3. One of the two primary types of construction specifications. 4. Small valley or rut in soil resulting from erosion. 6. Long, flexible netting-covered roll usually stuffed with straw, used in erosion control on slopes. 8. Shallow ditch designed to carry water through and away from a site is a drainage _______. 9. One of the three most critical considerations in landscape construction. 11. A cage-like component extending above ground level, allowing for leaf material to be screened out while letting water flow through to drain below. 12. What do terraces, baffles, and riprap do? 13. In inches, these are the two most common sizes of rigid PVC drain pipe. 14. Subsurface gravel trench designed to draw excess water off the surface and store it until it percolates into surrounding soil. 17. Drain fitting sometimes used as a cleanout. 18. This is used around perf pipe drainage systems to keep silt from clogging holes of pipe. 19. According to Dan, you should put a catch basin under each ________. 24. This style of drain pipe needs to be installed at a 5-10% slope. 25. Comprised of a layer of biodegradeable materials sandwiched between two layers of lightweight netting. Known as an erosion ________ _______. Helpful on a slope to prevent seeds from being washed away. 26. A process whereby mulching components are mixed and sprayed on the surface of site. 28. Don't use drainage components made of this material as they can become brittle with age. 30. A series of low walls built across a slope to control erosion. The walls can consist of timbers, wood, masonry, or stone. 32. On landscape drawings, a small triangular symbol inscribed with a number denotes a _______. 34. Mulching controls erosion by reducing the _______ of water droplets on the soil. 35. HP means ______ _______ as read from a landscape drawing. 37. A railroad tie or timber laid across a slope to control erosion. 38. In perforated drain pipe, what should always face down?