Trend analysis results for pH and alkalinity, April 1983 – April 2014
	All sites		Ponds		Streams
	pH	ANC	pH	ANC	pH	ANC
Increased	45	47	21	27	24	20
Decreased	4	1	0	0	4	1
No Change	85	86	48	42	37	44
Total	134	134	69	69	65	65
SOURCE: Acid Rain Monitoring Project Annual Report,                     Water Resources Research Center