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The Rural Voice, 2001-03, Page 20irrigation, is anticipated, the irrigation pump can be used to fill as well as to empty the pond. An intake basin with some protection against picking up sand and trash is advisable. Type 4 Ponds, are a rarity when irrigation water is their major intent. Spring water is usually cold. Tapping a sub- surface aquifer may also bring cold water and it may remain cold. If the ground water level has receded significant- ly, spring water as a source may not be � ' reliable in volume as Overflow from this spring -fed pond well as being too logs from the weir. low in temperature. It may also have chemical char- acteristics that make it unsuitable for irrigation purposes. In limestone is controlled by adding or removing stop carbonate and bicarbonate which give problems with pumps, irrigation nozzles and with plant levels. Therefore, if spring water is contem- plated, it is wise to have a chemical analysis to determine its suit- ability. Temper- atures below 12 degrees C. will effectively stop vegetative growth. A shallow and wider pond can overcome the tem- perature problem but increases the evaporative area and thus water -to -air Toss. From these considerations it is clear that spring areas, spring water may be saturated with calcium and/or magnesium carbonates or bicarbonates. It may contain manganese. iron as ferric Decision Making is Tougher Than Ever! The biggest change in the farming business is the rate of change. Farm managers are now faced with a multitude of issues which are more complex than ever. At times, the options and the consequences are overwhelming to the decision maker. For 30 years Ward & Uptigrove has been helping farmers make decisions by providing advice with respect to: • financial projections for expansions or other projects • bookkeeping and accounting systems • income tax planning and annual income tax filings • government assistance programs including NSA • estate and retirement planning • business succession • GST issues Give us a call. We would be pleased to meet you to review your farming business and the issues you face. If you decide we are the type of people you need to succeed – great. If you decide not to use our services, at least you will have received some fresh ideas and a free coffee. WARD & UPTIGROVE. LLP 145 MAIN STREET EAST LISTOWEL, ONTARIO N4W 3H2 PHONE: 519-291-3040 Fax: 519-291-1850 EMAIL: WUCA@WU.ON.CA PARTNERS: R.E. UPTIGROVE, CA C.D. NEWELL, CA R.H. LOREE, CA N.M. MACLENNAN, CA T.J. SOLTYS, CA R.K. UPTIGROVE, CA SENIOR PRINCIPALS: P.J. HAK, CMA B.R. BUCHANAN, CGA PRINCIPALS: D.C. LEGAULT, CGA R.K. NEWELL, CA G.T. SLOT, CA ASSOCIATES: B.W. CORNELL, CA R.D. DEYELL, CA C.L. GIBSON, CGA A.J. MCKAY, CA D.T. PATTEN, CGA 16 THE RURAL VOICE water should be examined carefully to determine its suitability for agricultural use. One concession west of Markdale, Ontario on the West Back Line is a fine example of a spring -fed series of ponds augmented by run-off from several farms — approximately 150 hectares being used to supply nine ponds. The number and location of the ponds gives good control of flood flows and the spring source ensures continuity of flow. Photos of the ponds illustrate what can be done with storage ponds for peak flows and outflow control to maintain pond levels. These ponds have operated for many years providing farm water supplies and enhancing the property values adjacent to them. Preparation In order to store spring run-off water it is advisable to begin planning one year at least in advance of the proposed construction date. A survey of the proposed pond area will be required showing the line of the water surface elevation and the freeboard (height of bank above maximum water level) required. Drawings will show the pond area in plan and elevations of the pond will detail sections through the pond at critical points. Nearby structures that could be affected by saturated soil should