SAPMT has reviewed the subject submittal dated August 05, 2014 and has no objection with the following comments:
1.	According to Aramco standard SAES-A-114, Clause 6.2.3, the TDS for Water to be used for compaction shall be less than 10,000 ppm.
2.	According to Aramco standard SAES-A-114, Clause 6.2.3, Water with more than 10,000 ppm can be used if: (Both of the following apply);
a.	There is no other water source within 20 km. (Joint Investigation by BOTH parties is required. Determine distance, quality, quantity)
b.	Adjacent concrete works are Exposure type II and III (Our foundations concrete is exposure type III; except Curbs, medians, pole foundations and gutters).
In light of the above the following can be adopted:
1.	The sources of water found in the vicinity of 20km are not enough/ reliable to provide a continuous supply of water for 35km of road works to be done for the KPSS project. Using potable water for any earthworks is an overkill/ unethical.
2.	Use water with 10,000 to 35,000 mg/L TDS for all types of backfilling, sub-grade, base course and sub-base where there is no adjacent concrete.
3.	Use water with 10,000 to 35,000 mg/L TDS for all types of backfilling, sub-grade, base course and sub-base where the adjacent concrete is Exposure type II or III.
4.	Use water with 1000 to 10,000 mg/L TDS for all types of backfilling, sub-grade, base course and sub-base where the adjacent concrete is Exposure type I.
It is IC’s responsibility to ensure that all works are done according to the agreed scope of work and Saudi Aramco Standards.

Should you have any questions, please contact Sohail Moughal, Project Engineer at Tel No. +966 12 422-4570.
