| Water type | Sample location | Stable isotopes (‰) | 2008 | 2009 | ||||||||||
| Jun | Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | |||
| Rain | BOGPM | δ18O | −6.7 | −3.5 | −2.2 | 1.7 | - | 0.3 | −8.5 | - | −9.4 | −11.9 | −13.8 | −9.6 |
|
| δ2H | −33.8 | −12.6 | 0.1 | 19.8 | - | 13.4 | −52.8 | - | −57.4 | −80.2 | −94.2 | −63.4 | |
| Superficial water | Tartaruga creek | δ18O | −7.0 | −4.9 | −3.2 | −4.2 | - | −3.9 | −5.6 | - | −6.4 | −7.8 | −8.9 | −6.9 |
| δ2H | −32.0 | −28.1 | −15.0 | −22.8 | - | −18.7 | −28.9 | - | −37.1 | −50.8 | −59.2 | −43.4 | ||
| Onça creek | δ18O | −6.4 | −5.5 | −4.6 | −4.4 | - | −4.4 | −5.3 | - | −6.1 | −8.6 | −9.9 | −6.9 | |
| δ2H | −31.9 | −28.9 | −20.9 | −22.2 | - | −21.1 | −28.6 | - | −36.7 | −56.5 | −64.3 | −40.8 | ||
| Grounwater | PT-01 (91 m*) | δ18O | - | −5.8 | −5.5 | −5.5 | - | - | −5.5 | - | −5.7 | −5.6 | −5.9 | −5.9 |
| δ2H | - | −32.9 | −31.7 | −31.5 | - | - | −31.1 | - | −31.1 | −31.4 | −33.3 | −34.8 | ||
| PT-11 (110 m*) | δ18O | −5.9 | −5.6 | −5.5 | −5.5 | - | −5.9 | −5.8 | - | −4.1 | −4.1 | −4.9 | −4.9 | |
| δ2H | −28.8 | −30.6 | −30.5 | −30.1 | - | −32.0 | −32.5 | - | −24.1 | −24.1 | −27.6 | −27.3 | ||
| PT-15 (120 m*) | δ18O | −5.6 | −4.9 | −5.1 | −4.7 | - | −5.1 | −4.7 | - | −5.1 | −4.8 | −5.5 | −5.8 | |
| δ2H | −32.3 | −28.7 | −30.9 | −27.3 | - | −28.0 | −28.1 | - | −31.5 | −30.0 | −29.4 | −32.9 | ||
| PT-17 (40 m*) | δ18O | −5.5 | −5.2 | −5.1 | −4.5 | - | −4.3 | −5.7 | - | −5.8 | −5.8 | −6.1 | −6.1 | |
| δ2H | −32.0 | −30.4 | −29.4 | −28.0 | - | −28.5 | −32.2 | - | −31.4 | −32.6 | −32.6 | −32.6 | ||
| PT-22 (40 m*) | δ18O | −4.8 | −4.5 | −5.1 | −4.9 | - | −5.2 | −5.3 | - | - | −4.9 | - | −4.6 | |
| δ2H | −26.2 | −25.1 | −26.6 | −26.0 | - | −27.3 | −27.3 | - | - | −27.4 | - | −26.2 | ||