Table 1.

Alpha-diversity parameters and library size among wells.

	Shannon			Observed richness			Pielou’s evenness			Library size
Well	Mean ± SD	Min	Max	Mean ± SD	Min	Max	Mean ± SD	Min	Max	Mean ± SD	Min	Max
1	6.70 ± 0.14	6.84	7.10	3,329 ± 1,017	2,277	4,306	0.87 ± 0.05	0.82	0.92	125,761 ± 71,506	53,917	196,925
2	6.99 ± 0.43	6.51	7.34	3,460 ± 938	2,405	4,198	0.86 ± 0.06	0.79	0.92	119,378 ± 55,911	54,848	153,358
3	6.85 ± 0.50	6.20	7.35	3,065 ± 1,255	1,649	4,537	0.86 ± 0.07	0.76	0.91	112,774 ± 77,875	37,341	198,58
4	6.34 ± 0.77	5.08	7.03	2,444 ± 728	1,344	3,34	0.82 ± 0.1	0.65	0.90	124,608 ± 80,534	34,21	241,095
5	7.19 ± 0.18	6.88	7.31	3,361 ± 1,017	1,895	4,239	0.89 ± 0.02	0.87	0.91	115,397 ± 50,687	46,724	163,021
6	6.76 ± 0.22	6.57	7.11	2,717 ± 801	1,874	3,672	0.86 ± 0.03	0.82	0.89	106,446 ± 38,955	60,551	142,871

SD, standard deviation; Min, minimum; Max, maximum.