**Acknowledgements**

The authors would like to thank the Ministry of Drinking Water & Sanitation, New Delhi, India, for providing the groundwater quality datasets (through website during 2016-17) cited in this study.

**References**

s12524-013-0297-9

[1] Amin A, Fazal S, Mujtaba A, Singh SK. Effects of land

transformation on water quality of Dal Lake, Srinagar, India. Journal of the Indian Society of Remote Sensing. 2014;**42**(1):119-128. DOI: 10.1007/

*DOI: http://dx.doi.org/10.5772/intechopen.92865*

*Fractal Analysis for Time Series Datasets: A Case Study of Groundwater Quality*

[8] MAM J, Raihan F, Alam JB,

2008;**2**(3):291-296

2009;**5**(8):1067-1076

31-45

215-222

9638-z

Hasanuzzaman S. Regression analysis of ground water quality data of Sunamganj district, Bangladesh. International Journal of Environmental Research.

[9] Carlson E, Ecker MD. A statistical examination of water quality in two Iowa Lakes. American Journal of Undergraduate Research. 2002;**1**(2):

[10] Korashey R. Using regression analysis to estimate water quality constituents in Bahr El Baqar drain. Journal of Applied Sciences Research.

[11] Psargaonkar A, Gupta A, Devotta S. Multivariate analysis of ground water resources in Ganga–Yamuna Basin (India). Journal of Environmental Science & Engineering. 2008;**50**(3):

[12] Singh SK, Srivastava PK, Singh D, Han D, Gautam SK, Pandey AC. Modeling groundwater quality over a humid subtropical region using numerical indices, earth observation datasets, and X-ray diffraction technique: A case study of Allahabad district, India. Environmental

Geochemistry and Health. 2015;**37**(1): 157-180. DOI: 10. 1007/s10653-014-

[13] Rawat KS, Mishra AK, Singh SK. Mapping of groundwater quality using normalized difference dispersal index of Dwarka subcity at Delhi National Capital of India. ISH Journal of Hydraulic Engineering. 2017;**23**(3):

[14] Rawat KS, Tripathi VK, Singh SK. Groundwater quality evaluation using numerical indices: A case study (Delhi, India). Sustainable Water Resources

229-240. DOI: 10.1080/ 09715010.2016.1277795

[2] Thakur JK, Diwakar J, Singh SK. Hydrogeochemical evaluation of groundwater of Bhaktapur

municipality, Nepal. Environment and Earth Science. 2015;**74**(6):4973-4988. DOI: 10.1007/s12665-015-4514-4

[3] World Health Organization (WHO). Guidelines for Drinking-Water Quality; Recommendations. 3rd ed. Vol. 1. Geneva: World Health Organization; 2006. p. 595. ISBN: 92 4 154696 4

Turki MM. Groundwater resources of a multi-layered aquiferous system in arid area: Data analysis and water budgeting. International journal of Environmental Science and Technology. 2008;**5**(3):

[5] Chenini I, Khemiri S. Evaluation of ground water quality using multiple linear regression and structural equation modeling. International journal of Environmental Science and Technology.

[6] Mousavi M, Kiani S, Lotfi S, Naeemi N, Honarmand M. Transient and spatial modelling and simulation of polybrominated diphenyl ethers reaction and transport in air, water and

soil. International journal of

[7] Vassilis Z, Antonopoulos M, Mitsiou AK. Statistical and trend analysis of water quality and quantity data for the Strymon River in Greece. Hydrology and Earth System Sciences.

Environmental Science and Technology.

[4] Chenini I, Ben Mammou A,

361-374

2009;**6**(3):509-519

2008;**5**(3):323-330

2001;**5**(4):679-691

**35**

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