Lake Levels

Our lake is manmade. Once a celery farm and sod farm. Stumps and an underwater bridge are still present under the surface of the water. In the fall of the year a concern of the lake level occurs when we have a drought. Members that have been at Sandy Pines for many years have experienced lake level fluctuations over the past 50 years. Mother nature with her rains is commonly the factor that restores the level of the lake. Sandy Pines does have lake pumps that try to mitigate the level to normal levels. In comparison of mother nature, we are small in comparison of what we generate as increased water levels. We have worked with Allegan County Drain Commission in the past to clean out the creek upstream. Some years we have an abundance of water for the lake and some years we experience drought. During drought we have seen beaches along the shoreline or in front of seawalls that are commonly not beaches. It should not be a surprise for lake levels to drop during dry conditions.

Evaporation, air temperatures, hours of sun, dew point, lake temperature, earth saturation/seepage, rainfall, drought, run off, and wind all impact the level of our lake. The surface or elevation of the lake is constantly changing due to these factors. At normal water level (672’ elevation) the lake is approx. 240 acres. An inch of rain on an acre is about 27,154 gallons. 240 acres (our lake surface at a normal level 672’) x 27,154 gallons= 6,516,960 gallons to increase the lake one inch. Sometimes we project blame onto the park for not keeping the lake level at a satisfactory level. In reality we are subject to seasonal rainfall provided by mother nature. Our valiant attempts to maintain a lake level have many factors and expenses.

Registered Guest Vehicles for 2021

The following are the number of vehicles signed in as guests during these holiday time frames:
Memorial Day May 27 to May 31 -839 registered vehicles
Holidays – July 1st to July 5th = 1,183 registered vehicles
Labor Day Sept 3 to Sept 6th = 861 registered vehicles
Christmas in August – Aug 6 to Aug 8th = 578 Vehicles

Comparison of years of guest vehicle entries:

Total guest vehicles that were signed in by members to enter the Park was 11,559 for 2021.
Total guest vehicles that were signed in by members to enter the Park was 7,866 in 2020.
Total guest vehicles that were signed in by members to enter the Park was 12,109 in 2019.
Total guest vehicles that were signed in by members to enter the Park was 11,649 in 2018.
Total guest vehicles that were signed in by members to enter the Park was 12,658 in 2017.

Length of stay of guests for 2021:

9,075 vehicles were registered for a 1 day stay.
1,066 vehicles were registered for a 2 day stay.
772 vehicles were registered for a 3 day stay.
376 vehicles were registered for a day stay.
128 vehicles were registered for a 5 day stay.
59 vehicles were registered for a 6 day stay
31 vehicles were registered for a 7 day stay.
52 vehicles were registered for 8 days or more.

10 Year comparison of number of card holder vehicles entering the Park:

265,576 vehicles entered the Park in 2021 (up to Oct 10)
281,199 vehicles entered the Park in 2020
220,703 vehicles entered the Park in 2019 (covid-19 restrictions)
278,441 vehicles entered the Park in 2018
285,756 vehicles entered the Park in 2017
350,531 vehicles entered the Park in 2016
364,881 vehicles entered the Park in 2015
250,911 vehicles entered the park in 2014
306,693 vehicles entered the Park in 2013
289,055 vehicles entered the Park in 2012
299,394 vehicles entered the Park in 2011

Who has membership cards?

Associate magnetic cards – 4,183
Associate Proximity cards – 1,905
Associate members 16-18 yrs. old magnetic cards – 91
Associate members 16 -18 yrs. old with Proximity cards – 57
Associate members under 16 yrs. magnetic cards – 85
Adult grand children with magnetic cards – 462
Grandchildren 16-18 yrs. old with magnetic cards – 89
Adult grand children with proximity cards – 167
Grandchildren 16-18 yrs. with proximity cards – 30
Member magnetic cards – 1,055
Member proximity cards – 2,383.
Proximity mailroom member cards -421
Recreation cards – 205
11,133 membership cards
The average cards holders per membership is 5.1.
Phase 1 has an average of 5.44 cards/membership
Phase 2 has an average of 4.8 cards/membership
Phase 3 has an average of 4.8 cards/membership
Phase 4 has an average of 5.3 cards/membership
Phase 5 has an average of 4.9 cards/membership
Phase 6 has an average of 6.1 cards/membership
Phase 7 (Condos) has an average of 4.5 cards/membership

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