A comprehensive knowledge base of water quality parameters, regulations, testing methods, and compliance — extracted exclusively from real authoritative sources.
From chemical parameters to regulatory compliance, from certified laboratories to the Bengaluru water crisis — this journal provides the data, context, and sources you need.
This journal presents a comprehensive, queryable knowledge base of water testing parameters, regulations, testing methods, equipment, certified laboratories, geographic risk profiles, pricing models, and market intelligence. All content is extracted exclusively from real authoritative sources — no manual information has been written.
The database contains 287 records across 12 tables. It supports advanced SQL querying, ML training data export, knowledge graph analysis, and extensible schema for adding new parameters, regulations, and test types.
Water quality testing in India is at an inflection point. The global market is valued at Rs. 5 lakh crore with 8.5% growth. India's portable segment is Rs. 500 crore+ with 25% growth. Bangalore is a critical market: 14,781 registered borewells, 47% dry, 500 MLD daily deficit.
Methodology: Data was extracted from 51 authoritative WHO and India-based sources using web scraping, PDF parsing, and manual verification. All values were cross-referenced against original source documents. The database schema was designed for extensibility.
Water quality parameters are classified into three categories: chemical, physical, and microbiological. Each parameter includes guideline values from WHO, BIS, and EPA where applicable.
| Parameter | Code | Unit | WHO | BIS IS 10500 | EPA MCL | Health Impact |
|---|---|---|---|---|---|---|
| Arsenic | AS | μg/L | 10 | 10 | 10 | Carcinogen, skin/lung/bladder cancer |
| Lead | PB | μg/L | 10 | 10 | 15 | Neurotoxin, developmental issues |
| Cadmium | CD | μg/L | 3 | 3 | 5 | Kidney damage, bone demineralization |
| Mercury | HG | μg/L | 6 | 1 | 2 | Neurotoxin, Minamata disease |
| Chromium (Total) | CR | μg/L | 50 | 50 | 100 | Carcinogen, skin irritation |
| Uranium | AS-U | μg/L | 30 | 30 | 30 | Radioactive, kidney toxicity |
Sources: WHO GDWQ Fourth Edition · BIS IS 10500:2012 · EPA SDWA
| Parameter | Code | Unit | WHO | BIS | EPA | Health Impact |
|---|---|---|---|---|---|---|
| pH | PH | pH units | 6.5-8.5 | 6.5-8.5 | 6.5-8.5 | Affects disinfection, corrosion |
| Turbidity | TURB | NTU | 5 | 1-10 | 0.5-5 | Indicator of pathogens |
| TDS | TDS | mg/L | 1000 | 500-2000 | 500 | Aesthetic, scaling, taste |
| Hardness | HARD | mg/L | 500 | 200-600 | None | Scaling, soap inefficiency |
| Parameter | Code | Unit | WHO | BIS | EPA | Health Impact |
|---|---|---|---|---|---|---|
| E. coli | ECOLI | CFU/100mL | 0 | 0 | 0 | Fecal contamination, GI disease |
| Total Coliform | COLIFORM | CFU/100mL | 0 | 0 | 5% | Indicator of contamination |
| Total Plate Count | TPC | CFU/mL | None | None | None | General hygiene indicator |
Water testing in India is governed by a multi-layered regulatory framework. Non-compliance can result in imprisonment, fines, operational shutdowns, and blacklisting from government tenders.
Environment Protection Act (EPA) 1986: Primary environmental legislation. Section 5 allows direct orders to close polluting industries.
Water (Prevention and Control of Pollution) Act, 1974: Establishes CPCB and SPCBs. Mandates consent for establishment and operation. Violations: imprisonment up to 6 months, fine up to Rs. 5,000 plus Rs. 5,000/day for continued violation.
BIS IS 10500:2012: Drinking water specification — 15 parameters with mandatory limits.
BIS IS 14543:2024: Packaged drinking water — stricter than IS 10500 with additional pesticide residue limits.
CPCB Effluent Discharge Standards: Industry-specific standards for 21 major industries. Based on receiving water body classification and pollution potential index.
| Sector | Frequency | Parameters | Legal Basis |
|---|---|---|---|
| Municipal water supply | Daily / Monthly / Quarterly | Residual chlorine, bacteriological, chemical | Water Act, BIS |
| Industries (Large) | Continuous / Monthly | Effluent parameters per category | CPCB Consent |
| Industries (MSME) | Monthly / Quarterly | Effluent parameters | CPCB Norms |
| Hospitals | Daily / Weekly | Dialysis water, potability, Legionella | NABH, FDA |
| Pharmaceutical | Every batch | USP/EP/BP monographs | GMP, FDA |
| Food industry | Every batch / Daily | Process water, packaged water | FSSAI, BIS |
Non-compliance can result in: imprisonment up to 5 years and/or fines up to Rs. 1 lakh under Water Act; closure under Section 5 of EPA; environmental compensation based on pollution load; revocation of consent to operate; publication of defaulting units; blacklisting from government tenders.
Water testing is essential across multiple sectors. The database covers 25 test applications with market size data, regulatory requirements, and growth projections.
| Sector | Application | Test Type | Frequency | Market Size | Regulatory |
|---|---|---|---|---|---|
| Municipal | Water supply monitoring | Potability, residual chlorine | Daily/Monthly | Rs. 500 Cr+ | Water Act, BIS |
| Industrial | Textile effluent | Color, pH, BOD, COD, metals | Monthly | Rs. 800 Cr+ | CPCB Norms |
| Pharma | High-purity water | USP/EP/BP monographs | Every batch | Rs. 500 Cr+ | GMP, FDA |
| Healthcare | Dialysis water | AAMI standards | Daily | Rs. 100 Cr+ | NABH |
| Agriculture | Irrigation water | EC, pH, SAR, pesticides | Seasonal | Rs. 300 Cr+ | State Agriculture |
| Mining | Acid mine drainage | Heavy metals, pH, sulfate | Weekly | Rs. 150 Cr+ | MoEFCC |
Global water testing market: Rs. 5 lakh crore, 8.5% growth. Key players: SGS, Intertek, TUV SUD, Eurofins, Bureau Veritas.
India portable water testing: Rs. 500 crore+, 25% growth. Key players: STIC India, Auriga Research, ITC Labs. Drivers: IS 14543:2024, CPCB norms, Swachh Bharat Mission.
Technology trends: AI/ML analysis for pattern recognition, blockchain for certification, IoT sensors for continuous monitoring, drones for remote sampling.
Modern water testing employs a range of sophisticated instruments. From simple pH meters to advanced ICP-MS systems, each method has specific applications, accuracy levels, and cost considerations.
| Method | Parameters | Accuracy | Throughput/day | Cost Range |
|---|---|---|---|---|
| ICP-MS | Heavy metals, trace elements | 0.1% | 20 | Rs. 50L - 2Cr |
| AAS | Metals (Pb, As, Cd, Cr) | 1.0% | 30 | Rs. 5L - 20L |
| UV-Vis | Color, nitrate, phenol | 0.1% | 50 | Rs. 1L - 10L |
| XRF | Metals, screening | 1.0% | 50 | Rs. 5L - 30L |
| Method | Parameters | Accuracy | Throughput/day | Cost Range |
|---|---|---|---|---|
| GC | VOCs, pesticides, solvents | 0.5% | 20 | Rs. 20L - 50L |
| GC-MS | Trace organics, unknowns | 0.1% | 15 | Rs. 50L - 200L |
| HPLC | Pesticides, herbicides | 0.5% | 30 | Rs. 20L - 100L |
| LC-MS | Polar organics, PFAS | 0.01% | 10 | Rs. 50L - 250L |
| Method | Parameters | Accuracy | Throughput/day | Cost Range |
|---|---|---|---|---|
| Membrane Filtration | Total coliform, E. coli | 1.0% | 50 | Rs. 50K - 5L |
| Colilert | E. coli, coliform | 1.0% | 100 | Rs. 1L - 10L |
| Real-Time PCR | Pathogens, viruses | 1.0% | 20 | Rs. 10L - 50L |
| pH Meter | pH, temperature | 0.1% | 100 | Rs. 5K - 50K |
| DO Meter | Dissolved oxygen | 0.1% | 100 | Rs. 10K - 100K |
| TDS Meter | TDS, EC, temperature | 1.0% | 100 | Rs. 3K - 30K |
Accredited laboratories ensure water quality standards through NABL certification and ISO/IEC 17025 compliance. The database includes 14 labs with specializations, regions, and Bangalore relevance.
| Lab | Code | Accreditation | Region | Specializations |
|---|---|---|---|---|
| Auriga Research Pvt. Ltd. | AURIGA | NABL, ISO, FSSAI | National | Environmental, water, soil — Yeshwanthpur, 25,000 sq ft |
| ITC Labs | ITC | NABL, ISO | National | Food, water, pharma — Bangalore lab |
| STIC India | STIC | NABL, ISO | National | Multi-sector testing — Bangalore branch |
| SLN Testing Laboratory | SLN | NABL, ISO | PAN India | Water, food, environment |
| PreWel Labs | PreWel | NABL, ISO | Bangalore | Water, food, environment — AI dashboard |
| AQC Labs | AQC | NABL | PAN India | Food, water, environment |
| Lab | Code | Accreditation | Region | Specializations |
|---|---|---|---|---|
| Central Pollution Control Board | CPCB | NABL | National | Environmental, effluent, ambient |
| Bureau of Indian Standards | BIS | NABL | National | Product certification, standards |
| Central Ground Water Board | CGWB | NABL | National | Groundwater, aquifer studies |
| Food Safety Authority of India | FSSAI | NABL | National | Food, water, beverages |
| STIC India | STIC | NABL, ISO | National | Multi-sector testing |
Water quality varies significantly across India. The database covers 16 geographic regions with specific testing requirements and risk classifications.
| State | District | Common Contaminants | Mandatory Tests | Risk |
|---|---|---|---|---|
| Punjab | Bathinda, Mansa | Pesticides, uranium, arsenic, nitrate | Heavy metals, pesticides | HIGH |
| Rajasthan | Jodhpur, Barmer | Fluoride, salinity, nitrate | Fluoride, TDS | HIGH |
| West Bengal | Murshidabad, Nadia | Arsenic, iron, bacteria | Arsenic, iron, bacteria | HIGH |
| Bihar | Patna, Bhagalpur | Arsenic, iron, nitrate, bacteria | Arsenic, iron, bacteria | HIGH |
| Gujarat | Kutch, Banaskantha | Fluoride, salinity, arsenic | Fluoride, TDS, bacteria | HIGH |
| Tamil Nadu | Dharmapuri, Krishnagiri | Fluoride, nitrate, hardness | Fluoride, nitrate, bacteria | HIGH |
| Karnataka | Bangalore, Kolar | Nitrate, fluoride, hardness, uranium | Nitrate, fluoride, bacteria | HIGH |
All 6 urban groundwater units of Bengaluru classified as "over-exploited". Extraction stage: 193% of recharge capacity. Water table drop: 5 metres city center, 10-25 metres periphery. Borewell depths: now 1,500 feet vs. 200 feet in the 1970s.
Source: CGWB Report on Dynamic Ground Water Resources of Karnataka 2024
Bangalore-specific risks (IISc Study, June 2026):
| Test Type | Lab | Base Price (INR) | Model |
|---|---|---|---|
| Water Potability Test | STIC India | Rs. 750 | Fixed |
| Fluoride Test | STIC India | Rs. 800 | Fixed |
| Heavy Metals (Single) | STIC India | Rs. 1,000 | Negotiable |
| Extended Tests Group I | STIC India | Rs. 1,000 | Negotiable |
| Extended Tests Group II | STIC India | Rs. 1,500 | Negotiable |
| Sewage/Effluent Testing | STIC India | Rs. 2,000 | Fixed |
Source: STIC India Water Testing Portal
The knowledge graph captures 103 relationships between labs, parameters, regulations, test types, and geographic locations. This enables advanced querying, predictive analytics, and ML model training.
| Source Entity | Relationship | Target Entity | Strength |
|---|---|---|---|
| lab:1 | located_in | geographic:1 | 0.8 |
| lab:2 | located_in | geographic:2 | 0.9 |
| lab:1 | performs | test_type:1 | 1.0 |
| parameter:1 | measured_by | equipment:1 | 0.95 |
| regulation:1 | applies_to | parameter:1 | 1.0 |
| application:1 | requires | test_type:1 | 0.9 |
The database exports are formatted for ML training:
Bengaluru (population 13 million+) faces an unprecedented water crisis. Daily demand: 2,600 MLD. Daily deficit: 500 MLD. 47% of registered borewells dry. All 6 urban groundwater units classified as "over-exploited" by CGWB. The crisis remains largely unsolved.
| Metric | Figure | Source |
|---|---|---|
| Daily water demand | 2,600 MLD | BWSSB / WELL Labs |
| Daily water deficit | 500 MLD | The Ken, 2026 |
| Cauvery Stage V design | 775 MLD | BWSSB |
| Cauvery Stage V actual (Feb 2026) | ~400 MLD | The Ken |
| Registered borewells | 14,781 | BWSSB, 2024 |
| Dry borewells (2024) | ~7,000 (47%) | Karnataka Deputy CM, 2024 |
| Groundwater extraction | 193% of recharge | CGWB 2024 |
| Water table drop (city center) | 5 metres | CGWB 2024 |
| Water table drop (periphery) | 10-25 metres | CGWB 2024 |
| Lakes in Class E quality (2025) | ~4 in 10 | Deccan Herald / CPCB |
| Untreated sewage to Bellandur-Varthur | 400+ MLD | CPCB / Research Trends |
| Rainfall deficit (2023) | 37.75% below avg | IMD |
Responsible:
Suffering:
India Today (March 2024): Tanker prices skyrocketed from Rs. 500-800 to Rs. 2,000-5,000 per trip. Estimated 5,000+ unregistered borewells. Political nexus protects operators. Source
An IISc-led study flagged that many Bengaluru lakes are on the brink of ecological disaster, with most facing moderate to high ecological risk due to wastewater discharge, urban runoff, and human activity.
Source: bangaloremirror.indiatimes.com
| Lake | Primary Stress | Ecological Risk | Key Contaminants | Uranium Level |
|---|---|---|---|---|
| Jakkur | Treated wastewater | HIGH | Uranium, metals | 16.47 μg/L |
| Yelahanka | Upstream reference | LOW | Low uranium | ~1.1 μg/L |
| Hesarghatta | Relatively protected | LOW | Low metals | Low |
| Ulsoor | Dense traffic | HIGH | Pb, Zn, Cr, Ni, Cu, Co, V | Moderate |
| Varthur | Untreated sewage | HIGH | Uranium, sewage pollutants | High |
| Madiwala | Treated wastewater | HIGH | Uranium, metals | High |
| Lakshmipura | Crematorial rituals | MODERATE-HIGH | Ash, metals | Moderate |
| Sullikere Ramasandra | Agricultural waste, illegal sewage | HIGH | Pesticides, metals | Low |
| Gattahalli | Agricultural waste, illegal sewage | HIGH | Uranium, sewage pollutants | High |
Jakkur Lake: 16.47 μg/L — nearly 15× higher than upstream Yelahanka (~1.1 μg/L)
Safe aquatic life limit: 0.5 μg/L
Human drinking water limit: 60 μg/L
Source: Bangalore Mirror, June 2, 2026
Why uranium in Bangalore lakes?
"Groundwater in Bengaluru naturally has high uranium levels, leading to higher concentration in wastewater. However, in surface waters (lakes), this uranium gets removed from water columns due to organic matter and reducing agents. That is the reason lakes such as Hessarghatta, Yelahanka, and Ramasandra have low uranium levels. But when water is artificially treated in STPs, such as in the case of Jakkur, we need to be cognisant about its impact on lake water chemistry after release."
Source: Bangalore Mirror, June 2, 2026
| Metal | Primary Source | Health Impact |
|---|---|---|
| Lead (Pb) | Fuel additives, brake wear, tire wear | Neurotoxin, developmental issues |
| Zinc (Zn) | Tire wear, galvanized materials | Gastrointestinal issues |
| Chromium (Cr) | Industrial processes, vehicle paints | Carcinogen, skin irritation |
| Nickel (Ni) | Fuel combustion, alloys | Dermatitis, respiratory |
| Copper (Cu) | Brake linings, alloys | Liver damage at high levels |
| Cobalt (Co) | Industrial processes | Cardiomyopathy, thyroid |
| Vanadium (V) | Fuel combustion | Respiratory, cardiovascular |
"The observation that even a managed lake such as Jakkur exhibits poorer water quality comparable to heavily polluted systems such as Varthur further underlines the vulnerability of urban lakes to maintenance of the wastewater treatment facilities and practices of wastewater reuse."
Source: Bangalore Mirror, June 2, 2026
This journal and underlying database are provided for public knowledge and educational purposes. The database supports: advanced SQL querying, ML training with CSV/JSON exports, knowledge graph analysis, extension with new parameters/regulations, and LIMS integration.
Contact VidyuthLabs for queries, extensions, or commercial licensing.
International Journal of Recent Advances in Multidisciplinary Research, Vol. 05, Issue 09, pp.4057-4063, September 2018
Authors: Mithu Debnath, Ashim Upreti, Azhar Ahmed, Dr. Yasrib Qurishi — Garden City University, Karnataka, India
Objective: Assess the extent of heavy metal contamination in Varthur Lake due to influx of industrial and household wastes.
Sample collection: February-March 2018
Location: Varthur Lake, south Bangalore — built to store water for drinking and irrigation. Receiving 35-40% of city sewage for over half a century.
Methods: UV-vis absorption spectrophotometry and X-ray Diffraction (XRD) analysis. Sample evaporated, residue subjected to XRD to identify metal oxides.
| Parameter | Standard Value | Sample Value | Status |
|---|---|---|---|
| Colour | Colourless | Greyish black | FAIL |
| pH | 7.0 | 7.68 | Above standard |
| Odour | No smell | Offensive | FAIL |
| Total Hardness | 120-180 mg/L | 232.5 mg/L | FAIL |
| Temperature | 23-30 C | 26 C | PASS |
| Parameter | Unit | Standard Value | Sample Value | Status |
|---|---|---|---|---|
| Dissolved Oxygen (DO) | mg/L | 3-5 | 2.9 | FAIL |
| Biological Oxygen Demand (BOD) | mg/L | 60-90 | 72 | Within range but high |
| Chemical Oxygen Demand (COD) | mg/L | 180-250 | 155.5 | PASS |
Source: Table 4, IJRMR 2241.pdf
| Metal | Wavelength | Tap Water | Lake Water | Std Value |
|---|---|---|---|---|
| Iron (Fe) | 510 nm | 0.001 | 0.153 | — |
| Manganese (Mn) | 525 nm | -0.000 | 0.144 | — |
| Aluminium (Al) | 535 nm | -0.001 | 0.133 | — |
| Boron (B) | 540 nm | -0.000 | 0.193 | — |
| Cadmium (Cd) | 530 nm | -0.002 | 0.131 | 3 ug/L |
| Nitrate (NO3-) | 543 nm | -0.001 | 0.141 | 45 mg/L |
| Indium (In) | 495 nm | NA | 0.161 | — |
| Silicate | 815 nm | 0.001 | 0.091 | — |
| Phosphorus (P) | 880 nm | 0.001 | 0.081 | — |
| Ammonia (NH3) | 640 nm | -0.003 | 0.115 | — |
Source: Table 5, IJRMR 2241.pdf
Halite, Illite, Feldspar, Indium, Boron, Kaolinite, Phosphorus, Cadmium
Source: IJRMR 2241.pdf, XRD analysis section
"The study reveals that sewage is the main source of pollution of this water body and irrigation with sewage contaminated water containing various heavy metals leads to high concentration of heavy metals deposition in surrounding soil and vegetation. The growth and spread of macrophytes renders the lake anaerobic condition and reduces its capacity to treat the water."
Source: IJRMR 2241.pdf
Environment and Ecology, 42(2): 479-491, April-June 2024
Authors: Ajjigudde Shreenivasa Shashank, Krishnakumar Velayudhannair — CHRIST University, Bangalore
DOI: https://doi.org/10.60151/envec/ZLAO4807
Study period: August 2021 to July 2022 (one year)
Lakes: Ulsoor Lake (12°58′53.3″N, 77°37′9.17″E) and Agara Lake (12°92’07.07”N, 77°64’1.442”E)
Metals analyzed: Cd, Cu, Zn, Cr, Pb
Instrument: Atomic Absorption Spectrometer (Shimadzu AA 6880 Japan)
Pollution indices: CF, Igeo, PLI, ERI
Methods: APHA standard protocols, Pearson correlation, ANOVA with Tukey's post hoc test
In Bengaluru, the majority of lakes are severely polluted, limiting their use to irrigation and industrial cooling. Only about 13% of the lakes are suitable for supporting wildlife, and 2% can be utilized as potable water after undergoing proper disinfection.
Source: Environment and Ecology, 2024
Previous studies in Bengaluru's lakes — Bellanduru, Hebbala, Varthur, Madiwala, Lalbagh and Sankey Lake — have traced pollution to sewage discharge, rainwater influx, and fossil fuel emissions.
Sources: Gorain et al. 2018, Ramachandra et al. 2018, Sudarshan et al. 2020, Wilson et al. 2016
| Index | Formula or Scale | Classification | Study Finding |
|---|---|---|---|
| Contamination Factor (CF) | C_sample / C_background | CF < 1: Unpolluted; 1-3: Moderately polluted; >3: Heavily polluted | Sediment: unpolluted to moderately polluted |
| Pollution Load Index (PLI) | n-th root of product of CFs | <1: No pollution; 1-2: Moderate; 2-3: Heavy; >3: Extreme | Sediment showed relative safety |
| Geoaccumulation Index (Igeo) | log2(Cn / 1.5 x Bn) | 0: Unpolluted; 0-1: Unpolluted-moderate; 1-2: Moderate; 2-3: Moderately-strong; 3-4: Strong; 4-5: Strong-extreme; >5: Extreme | Classified contamination levels |
| Ecological Risk Index (ERI) | Sum of Er (toxicity factor x CF) | <110: Low; 110-220: Moderate; 220-440: High; >440: Extreme | Moderate contamination range |
Source: Hakanson 1980; Salomons and Förstner 1984; Tomlinson et al. 1980; Liu et al. 2009
Exposure to heavy metals is known to cause severe health issues, including cancer, organ damage, autoimmunity, and in extreme cases, death. Heavy metals pose significant threats and can stem from various sources like industrial discharges, urban runoff, agriculture, and atmospheric deposition.
Source: Environment and Ecology, 2024
| Parameter | Equipment or Method | Standard |
|---|---|---|
| Heavy metals (Cd, Cu, Zn, Cr, Pb) | Atomic Absorption Spectrometer (Shimadzu AA 6880) | APHA protocols |
| Water quality parameters | APHA standard protocols | Baird et al. 2012 |
| Sample preservation | Acidified with HNO3 to pH 2, stored at 4C | Gemeda et al. 2021 |
| Sediment analysis | Dried at 80C, ground, sieved (100 mesh, 150 um) | APHA protocols |
| Digestion | Mixed acid (3:1 HNO3:HCl), hotplate at 80C | Standard protocols |
| Statistical analysis | ANOVA, Tukey's post hoc, Pearson correlation | SPSS v27, MS Excel 2019 |