References 
Ground water protection
Ground water protection
References: Ground water protection
Ground water protection
| Protection of the perspective underground resources in the Apostag-Dunaegyháza area | study | 2001-2002 |
| Protection of the perspective underground resources in the Homorúd area | study | 2001-2002 |
| Protection of the underground resources in the Hajdúszoboszló area | study | 2001 |
| Protection of the underground resources in the Dunaalmás area | study | 2001 |
| Protection of the underground resources in the Sükösd_Észak area | study | 2001 |
| Protection of the underground resources in the Nyírbátor area | study | 2001 |
| Protection of the underground resources in the Vásárosnamény area | study | 2001 |
| Protection of the underground resources in the Mórágy area | study | 2001 |
| Protection of the underground resources in the Celldömölk area | study | 2001 |
| Protection of the underground resources in the Rábapatonya area | study | 2001 |
| Protection of the underground resources in the Nyírmátonyfalva area | study | 2001 |