1659-4266 1659-4266 S1659-42662020000100106 10.22458/urj.v12i1.2588 Costa Rica Costa Rica 00 06 2020 00 06 2020 12 1 106 120

APHA, AWWA, & WEF. 2005 2006 117 (1) (1) 63-73 1990 35 (2) (2) 185-96 1961 133 (3465) (3465) 1702-3 2017 43 393 2018 190 (11) (11) 628 1994 119-38 2006 36 (3–4) (3–4) 141-51 2007 41 (14) (14) 3132-40 2005 302 (1–4) (1–4) 154-72 IAEA 2019 2001 2018 108 (January) (January) 71-7 2008 8 (1) (1) 1-13 2012 2002 260 (1–4) (1–4) 135-50 2007 334 (1–2) (1–2) 109-24 2005 39 (12) (12) 2621-35 1999 114 (3–4) (3–4) 323-37 2006 35 (5) (5) 229-36 2008 26 (3) (3) 303-4 2006 915 191-205 2000 26 (4) (4) 221-64 Servicio Nacional de Aguas Subterráneas, Riego y Avenamiento (SENARA). 2010 1999 71 (11) (11) 2250-3 2001 8 (1) (1) 26-39 1996 2012 427–428 1-10 2014 57 13-26 2000 36 (4) (4) 935-48 2013 45 (1) (1) 5-12 2012 47 (9) (9) 833-41 2012 432 216-26