Table 4.

Means and ranges of lake characteristics and water chemistry.

Variable	Units	Mean	Range	Sample size (n)
Year	—	2002	1933–2019	228,168
TN	mg L−1	0.908	0–20.6	39,457
TP	mg L−1	0.042	0–3.6	111,872
DO	mg L−1	9.82	1.32–67.7	761
DOC	mg L−1	0.008	0.01–1	10,517
Max depth	meters	15.6	0–310	188,205
Mean depth	meters	7.00	0.2–154	72,786
pH	—	7.99	5.5–10.7	12,934
Secchi depth	meters	2.76	0–61.7	195,782
Surface area	squared kilometers	25.11	<0.001–32,056	211,975
Chla	mg L−1	0.017	0–4.33	228,168