Every year we do various water quality tests to monitor the health of Long Pond.
E.coli Bacteria
The measurements given here are colonies per 100 mL. A rating of 0 is considered “drinkable” (although we don’t recommend that!). A rating of 195 is considered “okay for swimming.” High readings can be caused by many factors, including heavy rainfall.
| Year | Fiske | Bubar | Beach | West End | ||
| 2007 – August | 2 | 0 | 0 | 0 | ||
| 2007 – June | 7 | 3 | 4 | 5 | ||
| 2006 – May | 9 | 4 | 1 | 86 | ||
| 2005 – August | 5 | 26 | 34 | 41 | ||
| 2005 – June | 22 | 27 | 6 | 8 | ||
| 2004 – August | 9 | 4 | 39 | 6 | ||
| Fiske | Bubar | Seed | Cohen | Beach | West End | |
| 2004 – June | 0 | 3 | 1 | 2 | 34 | 3 |
| 2003 – September | 15 | 5 | 2 | 0 | 2 | 1 |
| Fiske | Bubar | Beach | West End | |||
| 2003 – August | 14 | 4 | 72 | 11 | ||
| 2003 – July | 1 | 3 | 4 | 1 | ||
| 2002 – September | 1 | 2 | 16 | 8 | ||
| 2002 – August | 24 | 25 | 74 | 42 | ||
| 2002 – July | 21 | 55 | 58 | 7 | ||
| 2001 – July | 8 | 3 | 136 | 80 | ||
| 2001 – May | 32 | 28 | 23 | 40 | ||
| North End (by Fiske camp) |
South End (by beach) |
|||||
| 2000 – September | 83 | 39 | ||||
| 2000 – July | 102 | 65 | ||||
| 1999 – August | 21 | 23 | ||||
| 1999 – July | 34 | 12 | ||||
| 1998 – August | 8 | 20 | ||||
| 1998 – July | 0 | 10 | ||||
| 1997 | Satisfactory | Satisfactory | ||||
| 1996 | ? | ? | ||||
| 1995 | 0 | 6 | ||||
| 1994 | 1 | 0 | ||||
| 1991-1993 | No testing | No testing | ||||
| 1990 | 2 | 1 | ||||
| 1989 | Satisfactory | Satisfactory | ||||
| 1988 | ? | ? | ||||
| 1987 | 0 | 0 | ||||
| 1986 | 0 | 0 | ||||
| 1985 | 50 | 50 | ||||
| 1982 | Satisfactory | Satisfactory |
Water Clarity (Secchi Disk)
Water clarity in the pond historically averages at about 6 or 7 meters. The highest historical clarity reading was between 8.5 and 9 meters. Clarity can vary throughout the year and can be influenced by rainfall.
| Year | Meters | Feet |
| 2007 – June | 5.4 m | |
| 2006 – August | 6.3 m | |
| 2006 – July | 6.2 m | |
| 2006 – Spring | 5.4 m | |
| 2005 – August | 7.1 m | |
| 2004 – August | 8.5 m | |
| 2004 – July | 7.2 m | approx. 25 ft |
| 2003 – August | approx. 25 ft | |
| 2003 – July | 6.8 m | approx. 24 ft |
| 2002 | ||
| 2001 – July | 7.5 m |
