Final
2015-08-28 08:57:52
- #1
In the local new development area, we have made a reservation for one and have received the development plan.
There are three things I am not quite clear about or do not fully understand the consequences (yes, I have used the forum search ):
1. Old Deposits / Contaminated Sites
Within the scope of the development plan is the old deposit site "xxxx" registered under xxxx, which is classified as not suspected to be contaminated based on the evaluation, since only soil excavation mixed with construction debris was used there. Basically, old deposits classified as not suspected to be contaminated are usable for construction, albeit with a residual risk regarding previously unknown contamination and the structural stability of buildings.
A soil report is planned anyway, but is that sufficient or should something else be considered?
2. Radon
The planning area lies within a zone where locally increased and occasionally high radon potential EHU has been determined in individual rock horizons. It is strongly recommended to conduct preliminary radon measurements in the soil air to determine whether and to what extent construction measures should be adapted to the respective local situation. Information on radon protection for new buildings and radon remediation can be found in the "Radon Manual" of the Federal Office for Radiation Protection.
Is the soil report sufficient for this as well? A quick search led me to the conclusion that the main issue is sealing basements against radon (is that the only "problem")? Approximately how much would that cost additionally?
3. Infiltration and Discharge of Rainwater
There is only a compulsory connection to public sewage systems for wastewater generated. According to the Rhineland-Palatinate State Water Act - LWG -, the generation of wastewater is to be avoided as far as possible. In the designated building area, rainwater generated is to be disposed of by surface infiltration. This can include trenches up to 20 cm deep. Furthermore, regardless of any potentially necessary water law permit or approval, it is recommended to reuse roof water on the respective property.
A water law permit is required for infiltration systems and discharge into public waters, which must be applied for by a qualified engineer registered under § 110 of the Rhineland-Palatinate State Water Act - LWG - at the Higher Water Authority.
To me, this doesn’t sound very good at first if you have to let your rainwater infiltrate yourself? Based on the soil, one can relatively well calculate how large the infiltration area must be; is the soil report sufficient for that?
How can one imagine such an area? Would it then not be usable for the garden (lawn or similar)?
Thanks a lot in advance.
There are three things I am not quite clear about or do not fully understand the consequences (yes, I have used the forum search ):
1. Old Deposits / Contaminated Sites
Within the scope of the development plan is the old deposit site "xxxx" registered under xxxx, which is classified as not suspected to be contaminated based on the evaluation, since only soil excavation mixed with construction debris was used there. Basically, old deposits classified as not suspected to be contaminated are usable for construction, albeit with a residual risk regarding previously unknown contamination and the structural stability of buildings.
A soil report is planned anyway, but is that sufficient or should something else be considered?
2. Radon
The planning area lies within a zone where locally increased and occasionally high radon potential EHU has been determined in individual rock horizons. It is strongly recommended to conduct preliminary radon measurements in the soil air to determine whether and to what extent construction measures should be adapted to the respective local situation. Information on radon protection for new buildings and radon remediation can be found in the "Radon Manual" of the Federal Office for Radiation Protection.
Is the soil report sufficient for this as well? A quick search led me to the conclusion that the main issue is sealing basements against radon (is that the only "problem")? Approximately how much would that cost additionally?
3. Infiltration and Discharge of Rainwater
There is only a compulsory connection to public sewage systems for wastewater generated. According to the Rhineland-Palatinate State Water Act - LWG -, the generation of wastewater is to be avoided as far as possible. In the designated building area, rainwater generated is to be disposed of by surface infiltration. This can include trenches up to 20 cm deep. Furthermore, regardless of any potentially necessary water law permit or approval, it is recommended to reuse roof water on the respective property.
A water law permit is required for infiltration systems and discharge into public waters, which must be applied for by a qualified engineer registered under § 110 of the Rhineland-Palatinate State Water Act - LWG - at the Higher Water Authority.
To me, this doesn’t sound very good at first if you have to let your rainwater infiltrate yourself? Based on the soil, one can relatively well calculate how large the infiltration area must be; is the soil report sufficient for that?
How can one imagine such an area? Would it then not be usable for the garden (lawn or similar)?
Thanks a lot in advance.