SABATTUS POND

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Data period: through 2017

Town	County	Delorme Map #	True Basin	Flushing Rate
GREENE	ANDROSCOGGIN	12	1	1.52 flushes/yr

Maximum Depth	Average Depth	Surface Area	Lake Volume	Drainage Area
6 m (19 ft)	3 m (11 ft)	796 ha (1,966 ac)	27,061,084 m³ (21,939 ac-ft)	66 km² (25 mi²)

Secchi Disk Transparency Graphs

Graph Legend: Secchi symbols = average Secchi Disk Transparency Values; tick marks = maximum and minimum values for each year.

## [1] "No 2017 Secchi Disk Transparency Data"

Water Chemistry and Trophic State Parameters

**Table Legend:**

**Color**: Color (SPU), **Alk**: Alkalinity (mg/l CaCO₃), **SpCon**: Specific Conductivity ( $\mu$ S/cm), pH: pH (standard units)

TP = Total Phosphorus ( $\mu$ g/L) – EC: Epilimnion Core, SG: Surface Grab, BG: Bottom Grab, PG: Profile Grab

**SDT** = Secchi Disk Transparency (m) – **Min**: minimum value, **Avg**: average value, **Max**: maximum value, n: number of months with Secchi readings per year, b: number of times Secchi disk was observed touching the bottom of the lake per year
**Chl** = Chlorophyll-a ( $\mu$ g/L) – **Min**: minimum value, **Avg**: average value, **Max**: maximum value
Year	Color	Alk	SpCon	pH	TP-EC	TP-SG	TP-BG	TP-PG	SDT-Min	SDT-Avg	SDT-Max	SDT-n	SDT-b	Chl-Min	Chl-Avg	Chl-Max
1979		15	74						0.6	1.0	1.9	3		7.6	63	239
1998			67						1.2	1.2	1.2	1
2002					45			50	1.8	2.1	2.4	2		14.1	14	14

Lake Chemistry and Trophic Summary Data - Overall Summary Values:

Avg Color	Avg Alk	Avg SpCon	pH	Avg TP-EC	Avg TP-SG	Avg TP-BG	Avg TP-PG	SDT-Min	SDT-Avg	SDT-Max	SDT-n	Chl-Min	Chl-Avg	Chl-Max
	15	70		45			50	0.6	1.5	2.4	2	7.6	38	239

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L

	1979-08-02		1979-08-08		1979-08-15		1979-08-23		1979-08-30		2002-08-23
Depth (m)	TEMP	DO	TEMP	DO	TEMP	DO	TEMP	DO	TEMP	DO	TEMP	DO
0	25	9.0	25	6.5	19	10.8	21	14	21	8.8
1	25	8.8	24	6.3	19	10.8	20	14	21	8.2	24	8.1
2	25	8.6	24	5.5	19	9.9	20	13	20	7.9	24	7.9
3	25	7.9	24	5.1	19	9.2	20	13	20	7.8	24	7.6
4	24	1.5	24	4.8	19	8.8	20	12	20	7.6	24	7.2
5	23	0.2	24	4.3	19	8.5					24	7.1

Recent temperature and dissolved oxygen profile plots

Temperature (°C), Dissolved Oxygen (mg/L)